<!-- "none" is preferred when the title is already sufficiently detailed; see WP:SDNONE -->
Scientific, nationwide public opinion polls conducted relating to the 2008 United States presidential election include:
Presidential election
Two-way contest: Barack Obama vs John McCain
800px|center|thumb|Graphical summary by monthly average
{|class="wikitable sortable"
!Poll Source!!Date administered!!Barack Obama!!John McCain!!Lead margin
!Sample size
!Margin of error
|-
|Marist College
|November 3, 2008
|52%
|43%
|9
|804 LV
|±3.5%
|-
|American Research Group
|November 1–3, 2008
|53%
|45%
|8
|1,200 LV
|±3%
|-
|Marist College
|November 2, 2008
|53%
|44%
|9
|635 LV
|±4%
|-
|NBC News/Wall Street Journal
|November 1 –2, 2008
|51%
|43%
| style="background:#3399FF" |8
|1,011 LV
|±3.1%
|-
|Fox News/Opinion Dynamics Corporation
|November 1–2, 2008
|50%
|43%
|7
|971 LV
|±3%
|-
|CBS News
|October 31–November 2, 2008
|51%
|42%
|9
|714 LV
|Not reported
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 31–November 2, 2008
|50.9%
|43.8%
|7.1
|Not reported
|Not reported
|-
|Investor's Daily Business/TIPP (Daily Tracking)
|October 31–November 2, 2008
|47.5%
|43%
|4.5
|Not reported
|Not reported
|-
|Gallup (Daily Tracking Model II)
|October 31 – November 2, 2008
|53%
|42%
| style="background:#3399FF" |11
|2,458 LV
|±2%
|-
|CNN/Opinion Research Corporation
|October 30 – November 1, 2008
|53%
|46%
| style="background:#3399FF" |7
|714 LV
|±3.5%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 30–November 1, 2008
|51%
|46%
|5
|3,000 LV
|±2%
|-
|Pew Research Center
|October 29 – November 1, 2008
|49%
|42%
|style="background:#3399FF"|7
|2,587 LV
|±2.5%
|-
|Polimetrix/YouGov
|October 18–November 1, 2008
|51%
|45%
|6
|31,148 RV
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|October 29–31, 2008
|51%
|44%
|7
|876 LV
|±3.3%
|-
|ABC News/Washington Post (Daily Tracking)
|October 28–31, 2008
|53%
|44%
|9
|1,896 LV
|Not reported
|-
|Gallup (Daily Tracking Model II)
|October 28–30, 2008
|52%
|43%
|9
|2,459 LV
|±2%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 28–30, 2008
|50.1%
|43.1%
| style="background:#3399FF" |7
|1,201 LV
|±2.9%
|-
|Investor's Business Daily/TIPP (Daily Tracking)
|October 28–30, 2008
|47.9%
|43.4%
|4.5
|Not reported
|Not reported
|-
|Marist College
|October 29, 2008
|50%
|43%
|7
|543 LV
|±4.5%
|-
|Fox News/Opinion Dynamics Corporation
|October 28–29, 2008
|47%
|44%
|3
|924 LV
|±3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 27–29, 2008
|51%
|46%
|style="background:#3399FF"|5
|3,000 LV
|±2%
|-
|CBS News/New York Times
|October 25–29, 2008
|52%
|41%
|11
|1,005 LV
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|October 26–28, 2008
|49%
|42%
|7
|870 LV
|±3.3%
|-
|The Economist/YouGov
|October 25–27, 2008
|49%
|42%
|7
|981 RV
|Not reported
|-
|Gallup (Daily Tracking Model II)
|October 25–27, 2008
|51%
|44%
|7
|2,396 LV
|±2%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 25–27, 2008
|49%
|44.7%
| style="background:#3399FF" |4.3
|1,202 LV
|±2.9%
|-
|ABC News/Washington Post (Daily Tracking)
|October 24–27, 2008
|52%
|45%
|7
|1,301 LV
|Not reported
|-
|McClatchy/Ipsos
|October 23–27, 2008
|50%
|45%
|5
|831 LV
|±3.4%
|-
|Investor's Business Daily/TIPP (Daily Tracking)
|October 23–27, 2008
|46.7%
|43.7%
|3
|Not reported
|Not reported
|-
|George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)
|October 21–23, 26–27, 2008
|49%
|45%
|4
|1,000 LV
|±3.1%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 23–25, 2008
|50%
|42%
|8
|878 LV
|±3.3%
|-
|Gallup (Daily Tracking Model II)
|October 22–24, 2008
|51%
|43%
| style="background:#3399FF" |8
|2,358 LV
|±2%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 21–24, 2008
|51.1%
|41.6%
| style="background:#3399FF" |9.5
|1,203 LV
|±2.9%
|-
|Newsweek/Princeton Survey Research Associates International
|October 22–23, 2008
|53%
|41%
|12
|882 LV
|±4%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 21–23, 2008
|52%
|45%
|7
|3,000 LV
|±2%
|-
|ABC News/Washington Post (Daily Tracking)
|October 20–23, 2008
|53%
|44%
|9
|1,321 LV
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|October 20–22, 2008
|48%
|43%
|5
|769 LV
|±3.5%
|-
|CBS News/New York Times
|October 19–22, 2008
|54%
|41%
| style="background:#3399FF" |13
|771 LV
|Not reported
|-
|Big Ten
|October 19–22, 2008
|52%
|43%
|9
|1,014 LV
|Not reported
|-
|Investors Business Daily/TIPP (Daily Tracking)
|October 18–22, 2008
|44.8%
|43.7%
| style="background:#3399FF" |1.1
|1,072 LV
|±3%
|-
|The Economist/YouGov
|October 20–21, 2008
|49%
|41%
|8
|998 RV
|±4%
|-
|Fox News/Opinion Dynamics Corporation
|October 20–21, 2008
|49%
|40%
|9
|936 LV
|±3%
|-
|Gallup (Daily Tracking Model II)
|October 19–21, 2008
|52%
|44%
|8
|2,420 LV
|±2%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 18–20, 2008
|50.3%
|42.4%
|7.9
|1,214 LV
|±2.9%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 18–20, 2008
|50%
|46%
|4
|3,000 LV
|±2%
|-
|American Research Group
|October 18–20, 2008
|49%
|45%
|style="background:#3399FF"|4
|1,200 LV
|±3%
|-
|NBC News/Wall Street Journal
|October 17–20, 2008
|52%
|42%
|style="background:#3399FF"|10
|1,159 RV
|±2.9%
|-
|George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)
|October 17–19, 2008
|51%
|46%
|style="background:#3399FF"|5
|746 LV
|±3.5%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|October 17–19, 2008
|47%
|42%
|7
|789 LV
|±3.5%
|-
|Pew Research Center
|October 16–19, 2008
|53%
|39%
|style="background:#3399FF"|14
|2,382 LV
|±2.5%
|-
|ABC News/Washington Post (Daily Tracking)
|October 16–19, 2008
|53%
|44%
|9
|1,366 LV
|Not reported
|-
|Hearst-Argyle/Franklin & Marshall College
|October 13–19, 2008
|50%
|45%
|5
|Not reported
|±3.5%
|-
|Gallup (Daily Tracking Model II)
|October 16–18, 2008
|51%
|44%
|7
|2,590 LV
|±2%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 15–17, 2008
|48.3%
|44.4%
|3.9
|1,209 LV
|±2.9%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 13–17, 2008
|47.2%
|39.8%
|7.4
|Not reported
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|October 14–16, 2008
|50%
|40%
|10
|804 LV
|±3.5%
|-
|Gallup (Daily Tracking Model II)
|October 13–15, 2008
|51%
|45%
| style="background:#3399FF" |6
|2,312 LV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 12–14, 2008
|50%
|45%
|5
|3,000 LV
|±2%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 11–14, 2008
|48.2%
|44.4%
|3.8
|1,210 LV
|±2.9%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|October 11–13, 2008
|48%
|42%
|6
|829 LV
|±3.4%
|-
|American Research Group
|October 10–13, 2008
|50%
|41%
|9
|1,030 LV
|±3%
|-
|CBS News/New York Times
|October 10–13, 2008
|53%
|39%
| style="background:#3399FF" |14
|699 LV
|Not reported
|-
|George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)
|October 8–9, 12–13, 2008
|53%
|40%
|13
|800 LV
|±3.5%
|-
|The Economist/YouGov
|October 11–12, 2008
|48%
|42%
|6
|998 RV
|±4%
|-
|USA Today/Gallup (Model II)
|October 10–12, 2008
|52%
|45%
|7
|1,030 LV
|±3%
|-
|Pew Research Center
|October 9–12, 2008
|49%
|42%
|7
|1,191 LV
|Not reported
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|October 8−12, 2008
|51%
|42%
|9
|1,000 LV
|Not reported
|-
|Investor's Business Daily/TIPP (Daily Tracking)
|October 6–12, 2008
|44.8%
|42.7%
|2.1
|825 LV
|±3.3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 9–11, 2008
|51%
|45%
|6
|3,000 LV
|±2%
|-
|ABC News/Washington Post
|October 8–11, 2008
|53%
|43%
|10
|766 LV
|±3.5%
|-
|Diageo/The Hotline/Financial Dynamics
|October 8–10, 2008
|50%
|40%
|10
|808 LV
|±3.5%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 7–10, 2008
|47.6%
|43.8%
|3.8
|1,208 LV
|±2.9%
|-
|Newsweek/Princeton Survey Research Associates International
|October 8–9, 2008
|52%
|41%
|11
|1,035 RV
|±3.7%
|-
|Fox News/Opinion Dynamics Corporation
|October 8–9, 2008
|46%
|39%
|7
|900 RV
|±3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 5–7, 2008
|45%
|44%
|1
|904 LV
|±3.3%
|-
|Gallup (Daily Tracking)
|October 5–7, 2008
|52%
|41%
|11
|2,747 RV
|±2%
|-
|George Washington University/Tarrance Group/Lake Research Partners
|October 2,
5–7, 2008
|49%
|45%
|4
|800 LV
|±3.5%
|-
|The Economist/YouGov
|October 4–6, 2008
|46%
|43%
|3
|999 RV
|±4%
|-
|Reuters/C-SPAN/Zogby International (Daily Tracking)
|October 4–6, 2008
|47.7%
|45.3%
|2.4
|1,237 LV
|±2.8%
|-
|American Research Group
|October 3–6, 2008
|50%
|44%
|6
|1,053 LV
|±3%
|-
|NBC News/Wall Street Journal
|October 4–5, 2008
|49%
|43%
|6
|658 RV
|±3.8%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|October 3–5, 2008
|52%
|44%
|8
|3,000 LV
|±2%
|-
|CBS News
|October 3–5, 2008
|48%
|45%
|3
|616 LV
|Not reported
|-
|CNN/Opinion Research Corporation
|October 1–5, 2008
|48%
|45%
|3
|1,000 LV
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics
|October 2–4, 2008
|48%
|41%
|7
|915 LV
|±3.2%
|-
|Gallup (Daily Tracking)
|October 2–4, 2008
|50%
|43%
|7
|2,728 RV
|±2%
|-
|Zogby Interactive
|October 2–3, 2008
|48.4%
|43.8%
|4.6
|2,873 LV
|±1.9%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 29–October 1, 2008
|47%
|42%
|5
|908 RV
|±3.3%
|-
|Gallup (Daily Tracking)
|September 29–October 1, 2009
|48%
|43%
|5
|2,747 RV
|±2%
|-
|George Washington University/Tarrance Group/Lake Research Partners
|September 28–October 1, 2008
|49%
|44%
|5
|800 LV
|±3.5%
|-
|Marist College
|September 28–30, 2008
|49%
|44%
|5
|943 LV
|±3.5%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|September 28–30, 2008
|49%
|45%
|4
|1,000 LV
|Not reported
|-
|CBS News
|September 27–30, 2008
|50%
|41%
| style="background:#3399FF" |9
|769 LV
|Not reported
|-
|Associated Press/GfK Group/Roper
|September 27–30, 2008
|48%
|41%
|7
|808 LV
|±3.4%
|-
|American Research Group
|September 27–29, 2008
|50%
|46%
|4
|916 LV
|±3%
|-
|Pew Research Center
|September 27–29, 2008
|49%
|43%
|6
|1,181 LV
|±4%
|-
|The Economist/Polimetrix/YouGov
|September 27–29, 2008
|47%
|42%
|5
|988 RV
|Not reported
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 27–29, 2008
|51%
|45%
|6
|3,000 LV
|±2%
|-
|Time/Schulman, Bucuvalas, & Ronca Inc. (SRBI)
|September 26–29, 2008
|48%
|45%
|3
|1,007 RV
|±3.1%
|-
|Gallup (Daily Tracking)
|September 26–28, 2008
|50%
|42%
| style="background:#3399FF" |8
|2,732 RV
|±2%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|September 26–28, 2008
|47%
|42%
|5
|903 RV
|±3.3%
|-
|Zogby Interactive
|September 26–27, 2008
|47.1%
|45.9%
|1.2
|2,102 LV
|±2.2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 24–26, 2008
|50%
|44%
|style="background:#3399FF"|6
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|September 23–25, 2008
|48%
|45%
|3
|2,736 RV
|±2%
|-
|Zogby Interactive
|September 23–25, 2008
|43.8%
|45.8%
|2
|4,752 LV
|±1.5%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|September 23–25, 2008
|49%
|42%
|7
|913 RV
|±3.2%
|-
|George Washington University/Tarrance Group/Lake Research Partners
|September 21–25, 2008
|46%
|48%
|2
|1,000 LV
|±3.1%
|-
|CBS News/New York Times
|September 22–24, 2008
|48%
|43%
| style="background:#3399FF" |5
|Not reported
|Not reported
|-
|The Economist/Polimetrix/YouGov
|September 22–24, 2008
|46%
|43%
|3
|985 RV
|Not reported
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|September 22−24, 2008
|47%
|44%
|3
|1,007
|Not reported
|-
|Marist College
|September 22–23, 2008
|49%
|44%
|5
|698 LV
|±4%
|-
|Fox News/Opinion Dynamics Corporation
|September 22–23, 2008
|45%
|39%
|6
|900 RV
|±3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 20–22, 2008
|47%
|44%
| style="background:#3399FF" |3
|2,740 RV
|±2%
|-
|American Research Group
|September 20–22, 2008
|47%
|43%
|4
|906 RV
|±3.3%
|-
|NBC News/Wall Street Journal
|September 20–22, 2008
|48%
|46%
|2
|1,085 RV
|±3.0%
|-
|Los Angeles Times/Bloomberg
|September 19–22, 2008
|49%
|45%
|4
|838 LV
|Not reported
|-
|ABC News/Washington Post
|September 19–22, 2008
|52%
|43%
| style="background:#3399FF" |9
|780 LV
|Not reported
|-
|McClatchy/Ipsos
|September 18–22, 2008
|44%
|43%
|1
|923 RV
|±3.2%
|-
|CNN/Opinion Research Corporation
|September 19–21, 2008
|51%
|47%
|4
|697 LV
|Not reported
|-
|Hearst-Argyle/Franklin & Marshall College
|September 15–21, 2008
|45%
|47%
|2
|1,320 RV
|±2.7%
|-
|Zogby Interactive
|September 19–20, 2008
|46.8%
|43.4%
|3.4
|2,331 LV
|±2.1%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 17–19, 2008
|50%
|44%
| style="background:#3399FF" |6
|2,756 RV
|±2%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|September 17–19, 2008
|45%
|44%
|1
|922 RV
|±3.2%
|-
|George Washington University/Tarrance Group/Lake Research Partners
|September 11, 14, 17–18, 2008
|47%
|47%
|Tied
|800 LV
|±3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 14–17, 2008
|46%
|45.1%
|0.9
|1,114 RV
|±3%
|-
|The Economist/Polimetrix/YouGov
|September 15–16, 2008
|43%
|45%
|2
|917 RV
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|September 14–16, 2008
|45%
|42%
|3
|913 RV
|±3.2%
|-
|Gallup (Daily Tracking)
|September 14–16, 2008
|47%
|45%
| style="background:#3399FF" |2
|2,787 RV
|±2%
|-
|CBS News/New York Times
|September 12–16, 2008
|49%
|44%
| style="background:#3399FF" |5
|Not reported
|Not reported
|-
|American Research Group
|September 13–15, 2008
|45%
|48%
| style="background:#FF6666" |3
|1,200 LV
|±3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 12–14, 2008
|47%
|49%
|2
|3,000 LV
|±2%
|-
|Pew Research Center
|September 9–14, 2008
|46%
|46%
|Tied
|2,307 LV
|Not reported
|-
|Gallup (Daily Tracking)
|September 11–13, 2008
|45%
|47%
| style="background:#FF6666" |2
|2,787 RV
|±2%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|September 11–13, 2002
|45%
|43%
|2
|904 RV
|±3.3%
|-
|Reuters/Zogby International
|September 11–13, 2008
|47%
|45%
| style="background:#3399FF" |2
|1,008 LV
|±3.1%
|-
|Newsweek/Princeton Survey Research Associates International
|September 10–11, 2008
|46%
|46%
|Tied
|1,038 RV
|±3.8%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 7–11, 2008
|44%
|48%
|4
|1,000 LV
|±3.1%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking))
|September 8–10, 2008
|44%
|46%
|2
|918 RV
|±3.2%
|-
|Gallup (Daily Tracking)
|September 8–10, 2008
|44%
|48%
| style="background:#FF6666" |4
|2,718 RV
|±2%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|September 5–10, 2008
|46%
|48%
|2
|1,000 LV
|Not reported
|-
|Associated Press/GfK Group/Roper
|September 5–10, 2008
|44%
|48%
| style="background:#FF6666" |4
|812 LV
|±3.4%
|-
|Fox News/Opinion Dynamics Corporation
|September 8–9, 2008
|42%
|45%
| style="background:#FF6666" |3
|900 RV
|±3%
|-
|The Economist/Polimetrix/YouGov
|September 7–9, 2008
|41%
|40%
|1
|877 RV
|Not reported
|-
|McClatchy/Ipsos
|September 5–9, 2008
|45%
|46%
|1
|876 RV
|±3.3%
|-
|Poll Position/InsiderAdvantage
|September 8, 2008
|46%
|46%
|Tied
|807 LV
|±3.36%
|-
|NBC News/Wall Street Journal
|September 6–8, 2008
|47%
|46%
| style="background:#3399FF" |1
|860 RV
|±3.3%
|-
|American Research Group
|September 6–8, 2008
|47%
|46%
| style="background:#3399FF" |1
|1,200 LV
|±3%
|-
|Public Opinion Strategies (R)
|September 6–8, 2008
|43%
|46%
|3
|800 LV
|Not reported
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 6–8, 2008
|48%
|48%
|Tied
|3,000 LV
|±2%
|-
|USA Today/Gallup
|September 5–7, 2008
|44%
|54%
|style="background:#FF6666"|10
|823 LV
|±4.0%
|-
|ABC News/Washington Post
|September 5–7, 2008
|47%
|49%
|style="background:#3399FF"|2
|Not reported
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|September 5–7, 2008
|44%
|44%
|Tied
|924 RV
|±3.2%
|-
|CNN/Opinion Research Corporation
|September 5–7, 2008
|48%
|48%
|Tied
|942 RV
|±3%
|-
|Investor's Business Daily/TIPP
|September 2–7, 2008
|45%
|40%
|style="background:#3399FF"|5
|868 RV
|±3.3%
|-
|Gallup (Daily Tracking)
|September 4–6, 2008
|45%
|48%
|3
|2,765 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|September 3–5, 2008
|49%
|46%
| style="background:#3399FF" |3
|3,000 LV
|±2%
|-
|Diageo/The Hotline/Financial Dynamics (Daily Tracking)
|September 2–4, 2008
|46%
|40%
|6
|916 RV
|±3.2%
|-
|CBS News
|September 1–3, 2008
|42%
|42%
|Tied
|734 RV
|±4%
|-
|The Economist/Polimetrix/YouGov
|September 1−3, 2008
|42%
|39%
|3
|883 RV
|Not reported
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|September 1–3, 2008
|49%
|44%
| style="background:#3399FF" |5
|1,000 LV
|Not reported
|-
|Gallup (Daily Tracking)
|September 1–3, 2008
|49%
|42%
|7
|2,771 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 31–September 2, 2008
|50%
|45%
|5
|3,000 LV
|±2%
|-
|American Research Group
|August 30–September 1, 2008
|49%
|43%
| style="background:#3399FF" |6
|1,200 LV
|±3%
|-
|USA Today/Gallup
|August 30–31, 2008
|50%
|43%
| style="background:#3399FF" |7
|1,835 RV
|±3%
|-
|Diageo/The Hotline/Financial Dynamics
|August 29–31, 2008
|48%
|39%
| style="background:#3399FF" |9
|805 RV
|±3.5%
|-
|CNN/Opinion Research Corporation
|August 29–31, 2008
|49%
|48%
|1
|927 RV
|±3%
|-
|CBS News
|August 29–31, 2008
|48%
|40%
| style="background:#3399FF" |8
|781 RV
|±4%
|-
|Zogby Interactive
|August 29–30, 2008
|44.6%
|47.1%
|2.5
|2,020 LV
|±2.2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 28–30, 2008
|49%
|46%
|3
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|August 27–29, 2008
|49%
|41%
|8
|2,709 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 25–26, 2008
|41%
|36%
|5
|847 RV
|Not reported
|-
|Gallup (Daily Tracking)
|August 24–26, 2008
|45%
|44%
|1
|2,724 RV
|±2%
|-
|CNN/Opinion Research Corporation
|August 23–24, 2008
|47%
|47%
|Tied
|909 RV
|±3.5%
|-
|Zogby Interactive
|August 23–24, 2008
|46%
|44%
|2
|2,248 LV
|±2.1%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 22–24, 2008
|48%
|45%
|3
|3,000 LV
|±2%
|-
|Diageo/The Hotline/Financial Dynamics
|August 18–24, 2008
|44%
|40%
|4
|1,022 RV
|±3%
|-
|USA Today/Gallup
|August 21–23, 2008
|48%
|45%
| style="background:#3399FF" |3
|765 LV
|±4%
|-
|ABC News/Washington Post
|August 19–22, 2008
|49%
|45%
|4
|Not reported
|Not reported
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 19–21, 2008
|47%
|46%
|1
|3,000 LV
|±2%
|-
|Fox News/Opinion Dynamics Corporation
|August 19–20, 2008
|42%
|39%
| style="background:#3399FF" |3
|900 RV
|±3%
|-
|The Economist/Polimetrix/YouGov
|August 18–20, 2008
|39%
|38%
| style="background:#3399FF" |1
|915 RV
|Not reported
|-
|Gallup (Daily Tracking)
|August 17–19, 2008
|45%
|43%
|2
|2,658 RV
|±2%
|-
|CBS News/New York Times
|August 15–19, 2008
|45%
|42%
| style="background:#3399FF" |3
|869 RV
|±3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 16–18, 2008
|47%
|45%
|2
|3,000 LV
|±2%
|-
|Los Angeles Times/Bloomberg
|August 15–18, 2008
|45%
|43%
|2
|1,248 RV
|Not reported
|-
|NBC News/Wall Street Journal
|August 15–18, 2008
|45%
|42%
| style="background:#3399FF" |3
|1,005 RV
|±3.1%
|-
|Quinnipiac University
|August 12–17, 2008
|47%
|42%
|5
|1,547 LV
|±2.5%
|-
|Reuters/Zogby International
|August 14–16, 2008
|41%
|46%
| style="background:#FF6666" |5
|1,089 LV
|±3.0%
|-
|Gallup (Daily Tracking)
|August 14–16, 2008
|45%
|45%
|1
|2,671 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 13–15, 2008
|46%
|45%
|1
|3,000 LV
|±2%
|-
|George Washington University/Tarrance Group/Lake Research Partners
|August 10–14, 2008
|46%
|47%
|1
|1,000 LV
|±3.1%
|-
|The Economist/Polimetrix/YouGov
|August 11–13, 2008
|41%
|40%
|1
|908 RV
|Not reported
|-
|Gallup (Daily Tracking)
|August 11–13, 2008
|46%
|43%
|3
|2,673 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research Center (Daily Tracking)
|August 10–12, 2008
|48%
|46%
|2
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|August 8–10, 2008
|47%
|42%
|5
|2,648 RV
|±2%
|-
|Pew Research Center
|July 31–August 10, 2008
|47%
|42%
|5
|2,414 RV
|±2.5%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 7–9, 2008
|48%
|46%
|2
|3,000 LV
|±2%
|-
|Investor's Business Daily/TIPP
|August 4–9, 2008
|43%
|38%
|5
|925 RV
|Not reported
|-
|Gallup (Daily Tracking)
|August 5–7, 2008
|46%
|43%
| style="background:#3399FF" |3
|2,718 RV
|±2%
|-
|Harris Interactive
|August 1–7, 2008
|47%
|38%
|9
|2,488 RV
|Not reported
|-
|Sacred Heart University
|July 28–August 7, 2008
|37.8%
|27%
|10.8
|800 A
|Not reported
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 4–6, 2008
|47%
|46%
| style="background:#3399FF" |1
|3,000 LV
|±2%
|-
|The Economist/Polimetrix/YouGov
|August 4–6, 2008
|42%
|39%
|3
|922 RV
|Not reported
|-
|CBS News
|July 31–August 5, 2008
|45%
|39%
|6
|851 RV
|Not reported
|-
|Gallup (Daily Tracking)
|August 2–4, 2008
|47%
|43%
|4
|2,674 RV
|±2%
|-
|Associated Press/Ipsos
|July 31–August 4, 2008
|48%
|42%
|6
|833 RV
|±3.4%
|-
|Time/Schulman, Bucuvalas, & Ronca Inc. (SRBI)
|July 31–August 4, 2008
|46%
|41%
|5
|808 LV
|±3.5%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|August 1–3, 2008
|46%
|47%
|1
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|July 31–August 1, 2008
|45%
|44%
|1
|2,684 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 29–31, 2008
|47%
|46%
|1
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|July 28–30, 2008
|45%
|44%
|1
|2,679 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 26–28, 2008
|47%
|46%
|1
|3,000 LV
|±2%
|-
|The Economist/Polimetrix/YouGov
|July 26–27, 2008
|44%
|37%
|7
|932 RV
|Not reported
|-
|CNN/Opinion Research Corporation
|July 25–27, 2008
|51%
|44%
|7
|914 RV
|±3%
|-
|USA Today/Gallup
|July 25–27, 2008
|45%
|49%
|4
|791 LV
|±4%
|-
|Pew Research Center
|July 23–27, 2008
|47%
|42%
|5
|1,241 RV
|±3.5%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 23–25, 2008
|49%
|43%
|6
|3,000 LV
|±2%
|-
|The Economist/Polimetrix/YouGov
|July 22–24, 2008
|41%
|38%
|3
|921 RV
|Not reported
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|July 21–24, 2008
|50%
|45%
|6
|1,004 LV
|Not reported
|-
|Fox News/Opinion Dynamics Corporation
|July 22–23, 2008
|41%
|40%
|1
|900 RV
|±3%
|-
|Gallup (Daily Tracking)
|July 21–23, 2008
|45%
|43%
|2
|2,660 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 20–22, 2008
|47%
|45%
|2
|3,000 LV
|±2%
|-
|NBC News/Wall Street Journal
|July 18–21, 2008
|47%
|41%
| style="background:#3399FF" |6
|1,003 RV
|±3.1%
|-
|Gallup (Daily Tracking)
|July 18–20, 2008
|47%
|41%
|6
|2,653 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 17–19, 2008
|47%
|45%
|2
|3,000 LV
|±2%
|-
|The Economist/Polimetrix/YouGov
|July 15–17, 2008
|41%
|36%
|5
|999 A
|±4%
|-
|Gallup (Daily Tracking)
|July 15–17, 2008
|45%
|44%
|1
|2,641 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 14–16, 2008
|46%
|46%
|Tied
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|July 12–14, 2008
|47%
|43%
|4
|2,637 RV
|±2%
|-
|CBS News/New York Times
|July 7–14, 2008
|45%
|39%
| style="background:#3399FF" |6
|1,462 RV
|±3%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 11–13, 2008
|46%
|43%
|style="background:#3399FF"|3
|3,000 LV
|±2%
|-
|ABC News/Washington Post
|July 10–13, 2008
|49%
|46%
|style="background:#3399FF"|3
|Not reported
|Not reported
|-
|Reuters/Zogby International
|July 9–13, 2008
|47%
|40%
|style="background:#3399FF"|7
|1,039 LV
|±3.1%
|-
|Quinnipiac University
|July 8–13, 2008
|50%
|41%
|style="background:#3399FF"|9
|1,725 LV
|±2.4%
|-
|Gallup (Daily Tracking)
|July 9–11, 2008
|47%
|43%
|4
|2,641 RV
|±2%
|-
|Investor's Business Daily/TIPP
|July 7–11, 2008
|40%
|37%
|3
|854 RV
|Not reported
|-
|Harris Interactive
|July 3–11, 2008
|44%
|35%
|9
|Not reported
|Not reported
|-
|Newsweek/Princeton Survey Research Associates International
|July 9–10, 2008
|44%
|41%
| style="background:#3399FF" |3
|1,037 RV
|±3.6%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 8–10, 2008
|47%
|45%
|2
|3,000 LV
|±2%
|-
|The Economist/Polimetrix/YouGov
|July 7–9, 2008
|39%
|38%
|1
|997 A
|±4%
|-
|Gallup (Daily Tracking)
|July 6–8, 2008
|46%
|44%
|2
|2,666 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|July 2, 6–7, 2008
|49%
|43%
|6
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|July 2–3, 5, 2008
|48%
|42%
|6
|2,620 RV
|±2%
|-
|The Economist/Polimetrix/YouGov
|July 1–2, 2008
|37%
|34%
|3
|998 A
|±4%
|-
|Gallup (Daily Tracking)
|June 30–July 2, 2008
|47%
|43%
|4
|2,641 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 29–July 1, 2008
|49%
|44%
|5
|3,000 LV
|±2%
|-
|CNN/Opinion Research Corporation
|June 26–29, 2008
|50%
|45%
| style="background:#3399FF" |5
|906 RV
|±3.5%
|-
|McLaughlin & Associates
|June 26–29, 2008
|46%
|38%
| style="background:#3399FF" |8
|1,000 LV
|±3.1%
|-
|Gallup (Daily Tracking)
|June 26, 28–29, 2008
|46%
|42%
| style="background:#3399FF" |4
|2,656 RV
|±2%
|-
|Pew Research Center
|June 18–29, 2008
|48%
|40%
|8
|1,574 RV
|Not reported
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 26–28, 2008
|49%
|43%
| style="background:#3399FF" |6
|3,000 LV
|±2%
|-
|The Economist/Polimetrix/YouGov
|June 23–25, 2008
|36%
|34%
|2
|991 A
|±4%
|-
|Gallup (Daily Tracking)
|June 23–25, 2008
|44%
|44%
|Tied
|2,605 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 23–25, 2008
|49%
|45%
|4
|3,000 LV
|±2%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|June 22–25, 2008
|49%
|45%
|4
|2,000 LV
|Not reported
|-
|Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI)
|June 18−25, 2008
|47%
|43%
|4
|803 LV
|±3%
|-
|Los Angeles Times/Bloomberg
|June 19–23, 2008
|49%
|37%
| style="background:#3399FF" |12
|1,115 RV
|±3%
|-
|Associated Press/Yahoo News/Knowledge Networks
|June 13–23, 2008
|40%
|39%
|1
|1,507 RV
|±2.5%
|-
|Gallup (Daily Tracking)
|June 20–22, 2008
|46%
|43%
|3
|2,608 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 15–22, 2008
|42%
|36%
|6
|1,501 RV
|±2.5%
|-
|Newsweek/Princeton Survey Research Associates International
|June 18–19, 2008
|51%
|36%
|style="background:#3399FF"|15
|896 RV
|±4%
|-
|Rasmussen Reports/Pulse Opinion Research
|June 17–19, 2008
|48%
|44%
|4
|3,000 LV
|±2%
|-
|USA Today/Gallup
|June 15–19, 2008
|50%
|44%
| style="background:#3399FF" |6
|1,310 LV
|±3%
|-
|Fox News/Opinion Dynamics
|June 17–18, 2008
|45%
|41%
| style="background:#3399FF" |4
|900 RV
|±3%
|-
|The Economist/Polimetrix/YouGov
|June 16–17, 2008
|37%
|34%
|3
|1,000 A
|±4%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 14–16, 2008
|48%
|44%
|4
|3,000 LV
|±2%
|-
|ABC News/Washington Post
|June 12–15, 2008
|49%
|45%
|3
|Not reported
|Not reported
|-
|Reuters/Zogby International
|June 12–14, 2008
|47%
|42%
| style="background:#3399FF" |5
|1,113 LV
|±3.0%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 11–13, 2008
|49%
|43%
|6
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|June 10, 12–13, 2008
|45%
|42%
|3
|2,691 RV
|±2%
|-
|Harris Interactive
|June 5–13, 2008
|44%
|33%
|11
|Not reported
|Not reported
|-
|The Economist/Polimetrix/YouGov
|June 10–11, 2008
|37%
|33%
|4
|996 A
|±4%
|-
|Ipsos
|June 5–11, 2008
|50%
|43%
|7
|467 LV
|Not reported
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 8–10, 2008
|49%
|44%
|5
|3,000 LV
|±2%
|-
|Gallup (Daily Tracking)
|June 7–9, 2008
|48%
|41%
|style="background:#3399FF"|7
|2,633 RV
|±2%
|-
|NBC News/Wall Street Journal
|June 6–9, 2008
|47%
|41%
|6
|1,000 RV
|±3.1%
|-
|Diageo/The Hotline/Financial Dynamics
|June 5–8, 2008
|44%
|42%
|2
|806 RV
|±3.5%
|-
|Investor's Business Daily/TIPP
|June 2–8, 2008
|42.5%
|40.4%
|2.1
|916 RV
|Not reported
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|June 2–6, 2008
|46%
|45%
|1
|4,408 RV
|±2%
|-
|Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
|May 29–31, 2008
|44%
|43%
|1
|802 RV
|±3.5%
|-
|Lombardo Consulting Group
|May 26–28, 2008
|44%
|40%
| style="background:#3399FF" |4
|1,000 RV
|Not reported
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|May 19–26, 2008
|47%
|47%
|Tied
|1,600 LV
|Not reported
|-
|}
<big>Three-way contest</big>
{| class="wikitable"
!Poll Source
!Date
!Barack Obama (D)
!John McCain (R)
!Ralph Nader (I)
!Sample size
!Margin of error
|-
|McClatchy/Ipsos
|October 30–November 1, 2008
|50%
|42%
|1%
|760 LV
|±3.6%
|-
|Associated Press/Yahoo News/Knowledge Networks
|November 2–3, 2008
|50.2%
|48.3%
|0.9%
|0.6%
|800 LV
|±3.5%
|-
|Lake Research Partners
|November 2–3, 2008
|51.5%
|46.5%
|1%
|1%
|800 LV
|±3.5%
|-
|Harris Interactive
|October 30–November 3, 2008
|52%
|44%
|1%
|1%
|3,946 LV
|Not reported
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|October 30–November 2, 2008
|51%
|44%
|2%
|1%
|1,000 LV
|Not reported
|-
|McClatchy/Ipsos
|October 20–27, 2008
|50%
|44%
|1%
|2%
|1,590 LV
|Not reported
|-
|Associated Press/Yahoo News/Knowledge Networks
|October 17–27, 2008
|51%
|43%
|1%
|2%
|Not reported
|Not reported
|-
|Pew Research Center
|October 23−26, 2008
|53%
|38%
|0%
|2%
|1,198 LV
|±3.5%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|October 21–23, 2008
|52%
|43%
|1%
|2%
|1,000 LV
|Not reported
|-
|George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)
|October 16, 19–22, 2008
|48%
|45%
|1%
|2%
|1,000 LV
|±3.5%
|-
|Harris Interactive
|October 16–20, 2008
|50%
|44%
|1%
|1%
|1,390 LV
|Not reported
|-
|Associated Press/GfK Group/Roper
|October 16–20, 2008
|44%
|43%
|1%
|1%
|800 LV
|±3.5%
|-
|McClatchy/Ipsos
|October 16–20, 2008
|50%
|42%
|0%
|1%
|773 LV
|±3.5%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|October 9–13, 2008
|48%
|39%
|1%
|2%
|1,036 RV
|±3.0%
|-
|Associated Press/Yahoo News/Knowledge Networks
|October 3–13, 2008
|49%
|44%
|1%
|1%
|1,528 LV
|±2.5%
|-
|George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)
|October 2–6, 2008
|47%
|40%
|1%
|3%
|858 RV
|±3.3%
|-
|George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)
|September 21–25, 2008
|45%
|47%
|1%
|2%
|1,000 LV
|±3.1%
|-
|Harris Interactive
|September 15–22, 2008
|47%
|46%
|1%
|2%
|1,590 LV
|Not reported
|-
|McClatchy/Ipsos
|September 11–15, 2008
|45%
|45%
|1%
|2%
|1,046 RV
|±3%
|-
|Associated Press/Yahoo News/Knowledge Networks
|September 5–15, 2008
|42%
|44%
|1%
|2%
|1,546 RV
|±2.5%
|-
|Reuters/Zogby International
|September 5–10, 2008
|44%
|48%
|1%
|1%
|812 LV
|±3.4%
|-
|Associated Press/Yahoo News/Stanford University/Knowledge Networks
|August 27–September 5, 2008
|43%
|39%
|1%
|2%
|1,728 RV
|±2.4%
|-
|Zogby Interactive
|August 12–14, 2008
|43%
|40%
|6%
|2%
|3,339 LV
|±1.7%
|-
|Associated Press/Ipsos
|July 31–August 1, 2008
|41%
|42%
|2%
|2%
|1,011 LV
|±3.1%
|-
|Fox News/Opinion Dynamics Corporation
|June 17–18, 2008
|42%
|39%
|2%
|4%
|900 RV
|±3%
|-
|ABC News/Washington Post
|June 4–5, 2008
|47%
|43%
|2%
|6%
|921 RV
|±3%
|}
Five-way contest
{|class="wikitable sortable"
!width="20%"|Poll Source
!width="5%"|Date
!width="10%"|Barack Obama (D)
! width="10%" |John McCain (R)
! width="10%" |Bob Barr (L)
!width="10%"|Cynthia McKinney (G)
!width="10%"|Ralph Nader (I)
!Sample size
!Margin of error
|-
|CNN/Opinion Research Corporation
|October 30–November 1, 2008
|51%
|43%
|1%
|1%
|2%
|714 LV
|±3.5%
|-
|Zogby Interactive
| rowspan="2" |May 30–June 3, 2008
|Hillary Clinton
|50%
|John McCain
|41%
| rowspan="2" |930 RV
| rowspan="2" |±4%
|-
|Barack Obama
|48%
|John McCain
|42%
|-
| rowspan="2" |USA Today/Gallup
| rowspan="2" |May 30–June 1, 2008
|Hillary Clinton
|48%
|John McCain
|44%
| rowspan="2" |803 LV
| rowspan="2" |±4%
|-
|Barack Obama
|49%
|John McCain
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |May 29–June 1, 2008
|Hillary Clinton
|44%
|John McCain
|46%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|45%
|John McCain
|45%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |May 24–25, 27–29, 2008
|Hillary Clinton
|47%
|John McCain
|45%
| rowspan="2" |4,368 RV
| rowspan="2" |±2%
|-
|Barack Obama
|46%
|John McCain
|45%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |May 27–28, 2008
|Hillary Clinton
|42%
|John McCain
|44%
|997 A
| rowspan="2" |±4%
|-
|Barack Obama
|38%
|John McCain
|48%
|995 A
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |May 21–25, 2008
|Hillary Clinton
|48%
|John McCain
|44%
| rowspan="2" |1,242 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|47%
|John McCain
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |May 21–24, 2008
|Hillary Clinton
|47%
|John McCain
|44%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|44%
|John McCain
|46%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |May 19–23, 2008
|Hillary Clinton
|49%
|John McCain
|45%
| rowspan="2" |4,460 RV
| rowspan="2" |±2%
|-
|Barack Obama
|45%
|John McCain
|46%
|-
| rowspan="2" |Newsweek/Princeton Survey Research Associates International
| rowspan="2" |May 21–22, 2008
|Hillary Clinton
|48%
|John McCain
|44%
| rowspan="2" |1,205 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|46%
|John McCain
|46%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |May 20–21, 2008
|Hillary Clinton
|45%
|John McCain
|40%
|994 A
| rowspan="2" |±4%
|-
|Barack Obama
|43%
|John McCain
|41%
|998 A
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |May 8–19, 2008
|Hillary Clinton
|39%
|John McCain
|36%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|41%
|John McCain
|47%
|-
| rowspan="2" |Reuters/Zogby International
| rowspan="2" |May 15–18, 2008
|Hillary Clinton
|43%
|John McCain
|43%
| rowspan="2" |1,076 LV
| rowspan="2" |±3.0%
|-
|Barack Obama
|48%
|John McCain
|40%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |May 14–18, 2008
|Hillary Clinton
|48%
|John McCain
|44%
| rowspan="2" |4,444 RV
| rowspan="2" |±2%
|-
|Barack Obama
|46%
|John McCain
|45%
|-
| rowspan="2" |Investor's Business Daily/TIPP
| rowspan="2" |May 12–18, 2008
|Hillary Clinton
|44%
|John McCain
|39%
| rowspan="2" |876 RV
| rowspan="2" |±3.2%
|-
|Barack Obama
|48%
|John McCain
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |May 13–16, 2008
|Hillary Clinton
|44%
|John McCain
|44%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|44%
|John McCain
|45%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |May 14–15, 2008
|Hillary Clinton
|44%
|John McCain
|40%
|993 A
| rowspan="2" |±4%
|-
|Barack Obama
|39%
|John McCain
|42%
|995 A
|-
| rowspan="2" |Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="2" |May 13–15, 2008
|Hillary Clinton
|43%
|John McCain
|51%
| rowspan="2" |1014 LV
| rowspan="2" |Not reported
|-
|Barack Obama
|49%
|John McCain
|47%
|-
| rowspan="2" |George Washington University/Tarrance Group/Lake Research
| rowspan="2" |May 11–14, 2008
|Hillary Clinton
|49%
|John McCain
|47%
| rowspan="2" |1,000 LV
| rowspan="2" |±3.1%
|-
|Barack Obama
|48%
|John McCain
|46%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |May 9–13, 2012
|Hillary Clinton
|48%
|John McCain
|45%
| rowspan="2" |4,381 RV
| rowspan="2" |±2%
|-
|Barack Obama
|46%
|John McCain
|45%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |May 9–12, 2008
|Hillary Clinton
|45%
|John McCain
|47%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|47%
|John McCain
|46%
|-
| rowspan="2" |Quinnipiac University
| rowspan="2" |May 8–12, 2008
|Hillary Clinton
|46%
|John McCain
|41%
| rowspan="2" |1,745 RV
| rowspan="2" |±2.4%
|-
|Barack Obama
|47%
|John McCain
|40%
|-
| rowspan="2" |ABC News/Washington Post
| rowspan="2" |May 8–11, 2008
|Hillary Clinton
|49%
|John McCain
|46%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|51%
|John McCain
|44%
|-
| rowspan="2" |NPR/Public Opinion Strategies/Greenberg Quinlan Rosner
| rowspan="2" |May 7–8, 10, 2008
|Hillary Clinton
|45%
|John McCain
|46%
| rowspan="2" |800 LV
| rowspan="2" |±3.46%
|-
|Barack Obama
|48%
|John McCain
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |May 5–8, 2008
|Hillary Clinton
|48%
|John McCain
|43%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|47%
|John McCain
|44%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |May 4–8, 2008
|Hillary Clinton
|48%
|John McCain
|44%
| rowspan="2" |4,348 RV
| rowspan="2" |±2%
|-
|Barack Obama
|46%
|John McCain
|45%
|-
| rowspan="2" |Los Angeles Times/Bloomberg
| rowspan="2" |May 1–8, 2008
|Hillary Clinton
|47%
|John McCain
|38%
| rowspan="2" |1,986 RV
| rowspan="2" |±3%
|-
|Barack Obama
|46%
|John McCain
|40%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |May 5–6, 2008
|Hillary Clinton
|39%
|John McCain
|47%
| rowspan="2" |996 A
| rowspan="2" |±4%
|-
|Barack Obama
|39%
|John McCain
|46%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 30 – May 4, 2008
|Hillary Clinton
|47%
|John McCain
|42%
| rowspan="2" |755 RV
| rowspan="2" |±3.6%
|-
|Barack Obama
|46%
|John McCain
|42%
|-
| rowspan="2" |USA Today/Gallup
| rowspan="2" |May 1–3, 2008
|Hillary Clinton
|46%
|John McCain
|49%
| rowspan="2" |803 LV
| rowspan="2" |±5%
|-
|Barack Obama
|47%
|John McCain
|48%
|-
| rowspan="2" |CBS News/New York Times
| rowspan="2" |May 1–3, 2008
|Hillary Clinton
|53%
|John McCain
|41%
| rowspan="2" |601 RV
| rowspan="2" |Not reported
|-
|Barack Obama
|51%
|John McCain
|40%
|-
| rowspan="2" |Diageo/The Hotline/Financial Dynamics
| rowspan="2" |April 30 – May 3, 2008
|Hillary Clinton
|46%
|John McCain
|43%
| rowspan="2" |803 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|47%
|John McCain
|43%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |April 30–May 2, 2008
|Hillary Clinton
|44%
|John McCain
|41%
|993 A
| rowspan="2" |±4%
|-
|Barack Obama
|43%
|John McCain
|41%
|998 A
|-
| rowspan="2" |CNN/Opinion Research Corporation
| rowspan="2" |April 28–30, 2008
|Hillary Clinton
|49%
|John McCain
|44%
| rowspan="2" |906 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|49%
|John McCain
|45%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 27–30, 2008
|Hillary Clinton
|44%
|John McCain
|44%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|43%
|John McCain
|46%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |April 26–30, 2008
|Hillary Clinton
|46%
|John McCain
|46%
| rowspan="2" |4,369 RV
| rowspan="2" |±2%
|-
|Barack Obama
|43%
|John McCain
|47%
|-
| rowspan="2" |Fox News/Opinion Dynamics
| rowspan="2" |April 28–29, 2008
|Hillary Clinton
|45%
|John McCain
|44%
| rowspan="2" |900 RV
| rowspan="2" |±3%
|-
|Barack Obama
|43%
|John McCain
|46%
|-
| rowspan="2" |CBS News/New York Times
| rowspan="2" |April 25–29, 2008
|Hillary Clinton
|48%
|John McCain
|43%
| rowspan="2" |891 RV
| rowspan="2" |Not reported
|-
|Barack Obama
|45%
|John McCain
|45%
|-
| rowspan="2" |NBC News/Wall Street Journal
| rowspan="2" |April 25–28, 2008
|Hillary Clinton
|45%
|John McCain
|44%
| rowspan="2" |1,006 RV
| rowspan="2" |±3.1%
|-
|Barack Obama
|46%
|John McCain
|43%
|-
| rowspan="2" |Pew Research Center
| rowspan="2" |April 23–27, 2008
|Hillary Clinton
|49%
|John McCain
|45%
| rowspan="2" |1,323 RV
| rowspan="2" |Not reported
|-
|Barack Obama
|50%
|John McCain
|44%
|-
| rowspan="2" |Associated Press/Ipsos
| rowspan="2" |April 23–27, 2008
|Hillary Clinton
|50%
|John McCain
|41%
| rowspan="2" |760 RV
| rowspan="2" |±3.6%
|-
|Barack Obama
|46%
|John McCain
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 23–26, 2008
|Hillary Clinton
|45%
|John McCain
|47%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|46%
|John McCain
|46%
|-
|Newsweek/Princeton Survey Research Associates International
|April 24–25, 2008
|Hillary Clinton<br />Barack Obama
|48%<br />47%
|John McCain<br />John McCain
|45%<br />44%
|1,203 RV
|±3%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |April 21–25, 2008
|Hillary Clinton
|47%
|John McCain
|44%
| rowspan="2" |4,397 RV
| rowspan="2" |±2%
|-
|Barack Obama
|45%
|John McCain
|45%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |April 21–22, 2008
|Hillary Clinton
|43%
|John McCain
|44%
|993 A
| rowspan="2" |±4%
|-
|Barack Obama
|42%
|John McCain
|45%
|995 A
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 18–20, 2008
|Hillary Clinton
|49%
|John McCain
|45%
| rowspan="2" |832 LV
| rowspan="2" |±4%
|-
|Barack Obama
|49%
|John McCain
|44%
|-
| rowspan="2" |Cook Political Report/RT Strategies
| rowspan="2" |April 17–20, 2008
|Hillary Clinton
|45%
|John McCain
|46%
| rowspan="2" |802 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|44%
|John McCain
|45%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 15–18, 2008
|Hillary Clinton
|42%
|John McCain
|49%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|41%
|John McCain
|48%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |April 14–18, 2008
|Hillary Clinton
|46%
|John McCain
|44%
| rowspan="2" |4,392 RV
| rowspan="2" |±2%
|-
|Barack Obama
|45%
|John McCain
|44%
|-
| rowspan="2" |Newsweek/Princeton Survey Research Associates International
| rowspan="2" |April 16–17, 2008
|Hillary Clinton
|47%
|John McCain
|43%
| rowspan="2" |1,209 RV
| rowspan="2" |±3%
|-
|Barack Obama
|48%
|John McCain
|44%
|-
| rowspan="2" |Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="2" |April 15–17, 2008
|Hillary Clinton
|47%
|John McCain
|49%
| rowspan="2" |1,000 LV
| rowspan="2" |Not reported
|-
|Barack Obama
|48%
|John McCain
|47%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |April 15–16, 2008
|Hillary Clinton
|40%
|John McCain
|45%
|997 A
| rowspan="2" |±4%
|-
|Barack Obama
|42%
|John McCain
|45%
|995 A
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 10–13, 2008
|Hillary Clinton
|45%
|John McCain
|48%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|49%
|John McCain
|44%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |April 9–13, 2008
|Hillary Clinton
|46%
|John McCain
|45%
| rowspan="2" |4,415 RV
| rowspan="2" |±2%
|-
|Barack Obama
|46%
|John McCain
|44%
|-
| rowspan="2" |Harris Interactive
| rowspan="2" |April 11–12, 2008
|Hillary Clinton
|39%
|John McCain
|38%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|41%
|John McCain
|36%
|-
| rowspan="2" |Reuters/Zogby International
| rowspan="2" |April 10–12, 2008
|Hillary Clinton
|41%
|John McCain
|46%
| rowspan="2" |1,046 LV
| rowspan="2" |±3.1%
|-
|Barack Obama
|45%
|John McCain
|45%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 7–10, 2008
|Hillary Clinton
|42%
|John McCain
|48%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|44%
|John McCain
|47%
|-
| rowspan="2" |Associated Press/Ipsos
| rowspan="2" |April 7–9, 2008
|Hillary Clinton
|48%
|John McCain
|45%
| rowspan="2" |749 RV
| rowspan="2" |±3.6%
|-
|Barack Obama
|45%
|John McCain
|45%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |April 4–8, 2008
|Hillary Clinton
|46%
|John McCain
|46%
| rowspan="2" |4,366 RV
| rowspan="2" |±2%
|-
|Barack Obama
|46%
|John McCain
|44%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |April 4–7, 2008
|Hillary Clinton
|43%
|John McCain
|44%
| rowspan="2" |994 A
| rowspan="2" |±4%
|-
|Barack Obama
|43%
|John McCain
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |April 3−6, 2008
|Hillary Clinton
|44%
|John McCain
|47%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|45%
|John McCain
|46%
|-
| rowspan="2" |Investor's Business Daily/TIPP
| rowspan="2" |April 1–6, 2008
|Hillary Clinton
|38%
|John McCain
|45%
| rowspan="2" |916 RV
| rowspan="2" |Not reported
|-
|Barack Obama
|44%
|John McCain
|44%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |March 31–April 3, 2008
|Hillary Clinton
|45%
|John McCain
|46%
| rowspan="2" |4,433 RV
| rowspan="2" |±2%
|-
|Barack Obama
|45%
|John McCain
|46%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |March 30–April 2, 2008
|Hillary Clinton
|42%
|John McCain
|47%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|41%
|John McCain
|48%
|-
| rowspan="2" |CBS News/New York Times
| rowspan="2" |March 28 – April 2, 2008
|Hillary Clinton
|48%
|John McCain
|43%
| rowspan="2" |1,196 RV
| rowspan="2" |Not reported
|-
|Barack Obama
|47%
|John McCain
|42%
|-
| rowspan="2" |Diageo/The Hotline/Financial Dynamics
| rowspan="2" |March 28–31, 2008
|Hillary Clinton
|41%
|John McCain
|50%
| rowspan="2" |799 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|44%
|John McCain
|46%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |March 26–30, 2008
|Hillary Clinton
|45%
|John McCain
|47%
| rowspan="2" |4,394 RV
| rowspan="2" |±2%
|-
|Barack Obama
|45%
|John McCain
|46%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |March 26–29, 2008
|Hillary Clinton
|40%
|John McCain
|50%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|44%
|John McCain
|47%
|-
| rowspan="2" |Republican National Committee/Voter/Voter/Consumer Research (R)
| rowspan="2" |March 25–27, 2008
|Hillary Clinton
|40%
|John McCain
|51%
| rowspan="2" |800 RV
| rowspan="2" |Not reported
|-
|Barack Obama
|42%
|John McCain
|48%
|-
| rowspan="2" |Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="2" |March 24–25, 2008
|Hillary Clinton
|44%
|John McCain
|46%
| rowspan="2" |800 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|44%
|John McCain
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |March 22–25, 2008
|Hillary Clinton
|43%
|John McCain
|50%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|41%
|John McCain
|51%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |March 21–22, 24–25, 2008
|Hillary Clinton
|45%
|John McCain
|47%
| rowspan="2" |4,433 RV
| rowspan="2" |±2%
|-
|Barack Obama
|44%
|John McCain
|46%
|-
| rowspan="2" |The Economist/Polimetrix/YouGov
| rowspan="2" |March 21–24, 2008
|Hillary Clinton
|39%
|John McCain
|48%
|995 A
| rowspan="2" |±4%
|-
|Barack Obama
|41%
|John McCain
|45%
|992 A
|-
| rowspan="2" |Harris Interactive
| rowspan="2" |March 14–24, 2008
|Hillary Clinton
|39%
|John McCain
|35%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|40%
|John McCain
|35%
|-
| rowspan="2" |Pew Research Center
| rowspan="2" |March 19–22, 2008
|Hillary Clinton
|49%
|John McCain
|44%
| rowspan="2" |1,248 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|49%
|John McCain
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |March 18–21, 2008
|Hillary Clinton
|43%
|John McCain
|49%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|41%
|John McCain
|49%
|-
| rowspan="2" |Gallup (Daily Tracking)
| rowspan="2" |March 18–19, 2008
|Hillary Clinton
|46%
|John McCain
|43%
| rowspan="2" |900 RV
| rowspan="2" |±3%
|-
|Barack Obama
|43%
|John McCain
|44%
|-
| rowspan="2" |CBS News
| rowspan="2" |March 15–18, 2008
|Hillary Clinton
|46%
|John McCain
|44%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|44%
|John McCain
|46%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |March 14–17, 2008
|Hillary Clinton
|42%
|John McCain
|48%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|42%
|John McCain
|48%
|-
| rowspan="2" |CNN/Opinion Research Corporation
| rowspan="2" |March 14–16, 2008
|Hillary Clinton
|49%
|John McCain
|47%
| rowspan="2" |950 RV
| rowspan="2" |±3%
|-
|Barack Obama
|47%
|John McCain
|46%
|-
| rowspan="2" |USA Today/Gallup
| rowspan="2" |March 14–16, 2008
|Hillary Clinton
|51%
|John McCain
|46%
| rowspan="2" |685 LV
| rowspan="2" |±4%
|-
|Barack Obama
|49%
|John McCain
|47%
|-
| rowspan="2" |Reuters/Zogby International
| rowspan="2" |March 13–14, 2008
|Hillary Clinton
|40%
|John McCain
|48%
| rowspan="2" |1,004 LV
| rowspan="2" |±3.2%
|-
|Barack Obama
|40%
|John McCain
|46%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |March 7–11, 2008
|Hillary Clinton
|47%
|John McCain
|45%
| rowspan="2" |4,372 RV
| rowspan="2" |±2%
|-
|Barack Obama
|46%
|John McCain
|44%
|-
| rowspan="2" |NBC News/Wall Street Journal
| rowspan="2" |March 7–10, 2008
|Hillary Clinton
|47%
|John McCain
|45%
| rowspan="2" |1,012 RV
| rowspan="2" |±3.1%
|-
|Barack Obama
|47%
|John McCain
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |March 2–5, 2008
|Hillary Clinton
|45%
|John McCain
|46%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|44%
|John McCain
|46%
|-
| rowspan="2" |SurveyUSA
| rowspan="2" |March 4, 2008
|Hillary Clinton
|48%
|John McCain
|46%
| rowspan="2" |1,041 RV
| rowspan="2" |Not reported
|-
|Barack Obama
|46%
|John McCain
|46%
|-
|Cook Political Report/RT Strategies
|February 28 – March 2, 2008
|Barack Obama
|47%
|John McCain
|38%
|802 RV
|±3.5%
|-
| rowspan="2" |ABC News/Washington Post
| rowspan="2" |February 28 – March 2, 2008
|Hillary Clinton
|50%
|John McCain
|47%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|53%
|John McCain
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |February 27–March 1, 2008
|Hillary Clinton
|44%
|John McCain
|47%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|43%
|John McCain
|48%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="2" |February 21–25, 2008
|Hillary Clinton
|40%
|John McCain
|46%
| rowspan="2" |1,246 RV
| rowspan="2" |±3%
|-
|Barack Obama
|42%
|John McCain
|44%
|-
| rowspan="2" |Associated Press/Ipsos
| rowspan="2" |February 22–24, 2008
|Hillary Clinton
|48%
|John McCain
|43%
| rowspan="2" |755 RV
| rowspan="2" |±3.6%
|-
|Barack Obama
|51%
|John McCain
|41%
|-
| rowspan="2" |USA Today/Gallup
| rowspan="2" |February 21–24, 2008
|Hillary Clinton
|46%
|John McCain
|50%
| rowspan="2" |1,653 LV
| rowspan="2" |±3%
|-
|Barack Obama
|47%
|John McCain
|48%
|-
| rowspan="2" |Pew Research Center
| rowspan="2" |February 20–24, 2008
|Hillary Clinton
|50%
|John McCain
|45%
| rowspan="2" |1,240 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|50%
|John McCain
|43%
|-
| rowspan="2" |CBS News/New York Times
| rowspan="2" |February 20–24, 2008
|Hillary Clinton
|46%
|John McCain
|46%
| rowspan="2" |1,115 RV
| rowspan="2" |±3%
|-
|Barack Obama
|50%
|John McCain
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |February 19–20, 2008
|Hillary Clinton
|44%
|John McCain
|47%
| rowspan="2" |900 RV
| rowspan="2" |±3%
|-
|Barack Obama
|47%
|John McCain
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |February 14–17, 2008
|Hillary Clinton
|40%
|John McCain
|48%
| rowspan="2" |803 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|48%
|John McCain
|40%
|-
| rowspan="2" |Reuters/Zogby International
| rowspan="2" |February 13–16, 2008
|Hillary Clinton
|38%
|John McCain
|50%
| rowspan="2" |1,105 LV
| rowspan="2" |±3%
|-
|Barack Obama
|47%
|John McCain
|40%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |February 8–10, 2008
|Hillary Clinton
|48%
|John McCain
|49%
| rowspan="2" |706 LV
| rowspan="2" |±4%
|-
|Barack Obama
|50%
|John McCain
|46%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |February 7–10, 2008
|Hillary Clinton
|46%
|John McCain
|45%
| rowspan="2" |790 RV
| rowspan="2" |±3.5%
|-
|Barack Obama
|48%
|John McCain
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="2" |February 3–6, 2008
|Hillary Clinton
|44%
|John McCain
|46%
| rowspan="2" |1,600 LV
| rowspan="2" |±3%
|-
|Barack Obama
|46%
|John McCain
|43%
|-
| rowspan="2" |Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI)
| rowspan="2" |February 1–4, 2008
|Hillary Clinton
|46%
|John McCain
|46%
| rowspan="2" |958 LV
| rowspan="2" |±3%
|-
|Barack Obama
|48%
|John McCain
|41%
|-
|}
Three-way race
{| class="wikitable"
!Poll source
!Date administered
!Democrat
!%
!Republican
!%
!Independent
!%
!Sample size
!Margin of error
|-
| rowspan="2" |Associated Press/Yahoo News/Knowledge Networks
| rowspan="2" |April 2–14, 2008
|Barack Obama
|34%
|John McCain
|36%
|Ralph Nader
|3%
| rowspan="2" |1,576 RV
| rowspan="2" |±2.5%
|-
|Hillary Clinton
|36%
|John McCain
|37%
|Ralph Nader
|3%
|-
| rowspan="2" |Reuters/Zogby International
|May 14–15, 2008
|Barack Obama
|42%
|John McCain
|38%
|Ralph Nader
|4%
|Bob Barr
|6%
|800 LV
|±3.5%
|-
| rowspan="2" |Zogby Interactive
| rowspan="2" |April 25–28, 2008
|Barack Obama
|45%
|John McCain
|42%
|Ralph Nader
|1%
|Bob Barr
|3%
| rowspan="2" |7,653 LV
| rowspan="2" |±1.1%
|-
|Hillary Clinton
|34%
|John McCain
|44%
|Ralph Nader
|3%
|Bob Barr
|4%
|-
| rowspan="2" |Reuters/Zogby International
| rowspan="4" |February 25–26, 2008
|Hillary Clinton
|44%
|Mike Huckabee
|45%
|994 A
| rowspan="4" |±4%
|-
|Hillary Clinton
|40%
|John McCain
|46%
|991 A
|-
|Barack Obama
|47%
|Mike Huckabee
|41%
|988 A
|-
|Barack Obama
|43%
|John McCain
|44%
|993 A
|-
| rowspan="4" |The Economist/Polimetrix/YouGov
| rowspan="4" |February 19–20, 2008
|Hillary Clinton
|46%
|Mike Huckabee
|40%
|999 A
| rowspan="4" |±4%
|-
|Hillary Clinton
|43%
|John McCain
|44%
|996 A
|-
|Barack Obama
|49%
|Mike Huckabee
|45%
|997 A
|-
|Barack Obama
|45%
|John McCain
|41%
|1,000 A
|-
| rowspan="4" |The Economist/Polimetrix/YouGov
| rowspan="4" |February 10–11, 2008
|Hillary Clinton
|48%
|Mike Huckabee
|41%
|999 A
| rowspan="4" |±4%
|-
|Hillary Clinton
|43%
|John McCain
|44%
|998 A
|-
|Barack Obama
|51%
|Mike Huckabee
|37%
|998 A
|-
|Barack Obama
|49%
|John McCain
|39%
|996 A
|-
| rowspan="4" |Zogby International
| rowspan="4" |February 8−11, 2008
|Hillary Clinton
|37%
|John McCain
|42%
| rowspan="4" |7,468 LV
| rowspan="4" |±1.2%
|-
|Barack Obama
|47%
|John McCain
|36%
|-
|Hillary Clinton
|40%
|Mike Huckabee
|37%
|-
|Barack Obama
|49%
|Mike Huckabee
|34%
|-
| rowspan="4" |The Economist/Polimetrix/YouGov
| rowspan="4" |February 4–5, 2008
|Hillary Clinton
|51%
|Mitt Romney
|36%
|998 A
| rowspan="4" |±4%
|-
|Hillary Clinton
|46%
|John McCain
|39%
|994 A
|-
|Barack Obama
|49%
|Mitt Romney
|35%
|997 A
|-
|Barack Obama
|44%
|John McCain
|38%
|993 A
|-
| rowspan="4" |CNN/Opinion Research Corporation
| rowspan="4" |February 1−3, 2008
|Barack Obama
|59%
|Mitt Romney
|36%
| rowspan="4" |974 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|56%
|Mitt Romney
|41%
|-
|Barack Obama
|52%
|John McCain
|44%
|-
|Hillary Clinton
|50%
|John McCain
|47%
|-
| rowspan="4" |Rasmussen Reports/Pulse Opinion Research (Daily Tracking)
| rowspan="4" |January 31 − February 3, 2008
|Hillary Clinton
|39%
|John McCain
|47%
| rowspan="4" |1,600 LV
| rowspan="4" |±3%
|-
|Hillary Clinton
|50%
|Mitt Romney
|37%
|-
|Barack Obama
|44%
|John McCain
|44%
|-
|Barack Obama
|44%
|Mitt Romney
|41%
|-
|rowspan=4|Cook Political Report/RT Strategies
|rowspan=4|January 31 – February 2, 2008
|Hillary Clinton
|41%
|John McCain
|45%
| rowspan="4" |855 RV
| rowspan="4" |±3.4%
|-
|Hillary Clinton
|48%
|Mitt Romney
|42%
|-
|Barack Obama
|45%
|John McCain
|43%
|-
|Barack Obama
|50%
|Mitt Romney
|41%
|-
|rowspan=4|ABC News/Washington Post
|rowspan=4|January 30 – February 1, 2008
|Hillary Clinton
|45%
|John McCain
|50%
| rowspan="4" |Not reported
| rowspan="4" |Not reported
|-
|Hillary Clinton
|51%
|Mitt Romney
|43%
|-
|Barack Obama
|47%
|John McCain
|48%
|-
|Barack Obama
|57%
|Mitt Romney
|36%
|-
|rowspan=4|Fox News/Opinion Dynamics Corporation
|rowspan=4|January 30–31, 2008
|Hillary Clinton
|44%
|John McCain
|45%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|50%
|Mitt Romney
|36%
|-
|Barack Obama
|44%
|John McCain
|43%
|-
|Barack Obama
|51%
|Mitt Romney
|33%
|-
| rowspan="2" |Democracy Corps/Greenberg Quinlan Rosner (D)
|rowspan=4|January 29–31, 2008
|Hillary Clinton
|45%
|John McCain
|48%
| rowspan="4" |1,000 LV
| rowspan="4" |±3%
|-
|Hillary Clinton
|49%
|Mitt Romney
|44%
|-
|Barack Obama
|47%
|John McCain
|48%
|-
|Barack Obama
|53%
|Mitt Romney
|41%
|-
|rowspan=2|Rasmussen Reports/Pulse Opinion Research
|rowspan=2|January 25–27, 2008
|Hillary Clinton
|40%
|John McCain
|48%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Barack Obama
|41%
|John McCain
|47%
|-
|rowspan=2|Rasmussen Reports/Pulse Opinion Research
|rowspan=2|January 21–22, 2008
|Barack Obama
|47%
|Mitt Romney
|38%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|47%
|Mitt Romney
|42%
|-
|rowspan= 8|NBC News/Wall Street Journal
|rowspan= 8|January 20–22, 2008
|Barack Obama
|41%
|John McCain
|43%
| rowspan="8" |Not reported
| rowspan="8" |Not reported
|-
|Barack Obama
|48%
|Mitt Romney
|35%
|-
|Barack Obama
|54%
|Rudy Giuliani
|34%
|-
|Barack Obama
|55%
|Mike Huckabee
|33%
|-
|Hillary Clinton
|43%
|John McCain
|47%
|-
|Hillary Clinton
|50%
|Mike Huckabee
|41%
|-
|Hillary Clinton
|52%
|Rudy Giuliani
|37%
|-
|Hillary Clinton
|52%
|Mitt Romney
|36%
|-
|rowspan=8|Los Angeles Times/Bloomberg
|rowspan=8|January 18–22, 2008
|Barack Obama
|47%
|Mike Huckabee
|37%
| rowspan="4" |643 RV
| rowspan="8" |±4%
|-
|Barack Obama
|41%
|John McCain
|42%
|-
|Barack Obama
|49%
|Rudy Giuliani
|32%
|-
|Barack Obama
|46%
|Mitt Romney
|35%
|-
|Hillary Clinton
|51%
|Mike Huckabee
|38%
| rowspan="4" |669 RV
|-
|Hillary Clinton
|53%
|Rudy Giuliani
|37%
|-
|Hillary Clinton
|46%
|John McCain
|42%
|-
|Hillary Clinton
|50%
|Mitt Romney
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |January 18–20, 2008
|Barack Obama
|51%
|Mike Huckabee
|35%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|48%
|Mike Huckabee
|40%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |January 16–17, 2008
|Barack Obama
|46%
|John McCain
|41%
| rowspan="2" |800 LV
| rowspan="2" |±4.5%
|-
|Hillary Clinton
|47%
|John McCain
|45%
|-
|rowspan=4|USA Today/Gallup
|rowspan=4|January 10–13, 2008
|Barack Obama
|53%
|Mike Huckabee
|43%
| rowspan="4" |1,598 LV
| rowspan="4" |±3%
|-
|Barack Obama
|45%
|John McCain
|50%
|-
|Hillary Clinton
|47%
|John McCain
|50%
|-
|Hillary Clinton
|51%
|Mike Huckabee
|45%
|-
|rowspan=12|Diageo/The Hotline/Financial Dynamics
|rowspan=12|January 10–12, 2008
|Barack Obama
|41%
|John McCain
|39%
| rowspan="12" |803 RV
| rowspan="12" |±3.5%
|-
|Hillary Clinton
|43%
|John McCain
|47%
|-
|Barack Obama
|53%
|Mike Huckabee
|30%
|-
|Hillary Clinton
|48%
|Mike Huckabee
|39%
|-
|Barack Obama
|56%
|Mitt Romney
|26%
|-
|Hillary Clinton
|49%
|Mitt Romney
|37%
|-
|Barack Obama
|54%
|Rudy Giuliani
|33%
|-
|Hillary Clinton
|50%
|Rudy Giuliani
|40%
|-
|John Edwards
|48%
|Rudy Giuliani
|31%
|-
|John Edwards
|39%
|John McCain
|47%
|-
|John Edwards
|47%
|Mike Huckabee
|31%
|-
|John Edwards
|48%
|Mitt Romney
|33%
|-
| rowspan="6" |Reuters/Zogby International
| rowspan="6" |January 10–11, 2008
|Hillary Clinton
|47%
|Mitt Romney
|37%
| rowspan="6" |1,006 LV
| rowspan="6" |±3.1%
|-
|Hillary Clinton
|47%
|Mike Huckabee
|38%
|-
|Hillary Clinton
|46%
|Rudy Giuliani
|35%
|-
|Barack Obama
|53%
|Mitt Romney
|34%
|-
|Barack Obama
|51%
|Mike Huckabee
|36%
|-
|Barack Obama
|51%
|Rudy Giuliani
|34%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |January 9–10, 2008
|Hillary Clinton
|38%
|John McCain
|49%
| rowspan="2" |800 LV
| rowspan="2" |±4.5%
|-
|Hillary Clinton
|42%
|Mike Huckabee
|45%
|-
| rowspan="8" |CNN/Opinion Research Corporation
| rowspan="8" |January 9–10, 2008
|Hillary Clinton
|50%
|John McCain
|48%
| rowspan="8" |840 RV
| rowspan="8" |±3.5%
|-
|Hillary Clinton
|55%
|Rudy Giuliani
|42%
|-
|Hillary Clinton
|56%
|Mike Huckabee
|42%
|-
|Hillary Clinton
|58%
|Mitt Romney
|40%
|-
|Barack Obama
|49%
|John McCain
|48%
|-
|Barack Obama
|56%
|Rudy Giuliani
|40%
|-
|Barack Obama
|58%
|Mike Huckabee
|39%
|-
|Barack Obama
|59%
|Mitt Romney
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jan 7−8, 2008
|Barack Obama
|47%
|Mitt Romney
|40%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|48%
|Rudy Giuliani
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jan 4–6, 2008
|Barack Obama
|43%
|John McCain
|46%
| rowspan="2" |800 LV
| rowspan="2" |±4.5%
|-
|Barack Obama
|45%
|Mike Huckabee
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jan 2–3, 2008
|Barack Obama
|45%
|Mitt Romney
|39%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|47%
|Rudy Giuliani
|37%
|-
|rowspan=4|Fox News/Opinion Dynamics Corporation
|rowspan=4|Dec 18–19, 2007
|Barack Obama
|40%
|John McCain
|44%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|Barack Obama
|44%
|Mike Huckabee
|35%
|-
|Hillary Clinton
|42%
|John McCain
|47%
|-
|Hillary Clinton
|47%
|Mike Huckabee
|38%
|-
| rowspan="4" |ABC News/Facebook
| rowspan="4" |Dec 16–19, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|47%
| rowspan="4" |1,142 A
| rowspan="4" |±3%
|-
|Hillary Clinton
|50%
|Mike Huckabee
|42%
|-
|Barack Obama
|48%
|Rudy Giuliani
|41%
|-
|Barack Obama
|52%
|Mike Huckabee
|35%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 17–18, 2007
|Hillary Clinton
|44%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±4.5%
|-
|Hillary Clinton
|43%
|Mitt Romney
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Not reported (Dec 15-16?)
|Barack Obama
|43%
|John McCain
|45%
| rowspan="2" |Not reported
| rowspan="2" |Not reported
|-
|Barack Obama
|47%
|Fred Thompson
|40%
|-
| rowspan="5" |NBC News/Wall Street Journal
| rowspan="5" |Dec 14–17, 2007
|Barack Obama
|49%
|Rudy Giuliani
|40%
| rowspan="3" |Not reported
| rowspan="3" |Not reported
|-
|Hillary Clinton
|46%
|Mike Huckabee
|44%
|-
|Barack Obama
|48%
|Mike Huckabee
|36%
|-
|Hillary Clinton
|46%
|Rudy Giuliani
|43%
| rowspan="2" |1,005 A
| rowspan="2" |±3.1%
|-
|Hillary Clinton
|48%
|Mitt Romney
|41%
|-
| rowspan="6" |USA Today/Gallup
| rowspan="6" |Dec 14–16, 2007
|Barack Obama
|51%
|Rudy Giuliani
|45%
| rowspan="6" |906 RV
| rowspan="6" |±4%
|-
|Barack Obama
|53%
|Mike Huckabee
|42%
|-
|Barack Obama
|57%
|Mitt Romney
|39%
|-
|Hillary Clinton
|49%
|Rudy Giuliani
|48%
|-
|Hillary Clinton
|52%
|Mitt Romney
|46%
|-
|Hillary Clinton
|53%
|Mike Huckabee
|44%
|-
| rowspan="15" |Zogby International
| rowspan="15" |Dec 12–14, 2007
|Barack Obama
|53%
|Mitt Romney
|35%
| rowspan="15" |1,000 LV
| rowspan="15" |±3.2%
|-
|Barack Obama
|47%
|Mike Huckabee
|42%
|-
|Barack Obama
|48%
|Rudy Giuliani
|39%
|-
|Barack Obama
|47%
|John McCain
|43%
|-
|Barack Obama
|52%
|Fred Thompson
|36%
|-
|Hillary Clinton
|46%
|Mitt Romney
|44%
|-
|Hillary Clinton
|43%
|Mike Huckabee
|48%
|-
|Hillary Clinton
|42%
|Rudy Giuliani
|46%
|-
|Hillary Clinton
|42%
|John McCain
|49%
|-
|Hillary Clinton
|48%
|Fred Thompson
|42%
|-
|John Edwards
|50%
|Mitt Romney
|38%
|-
|John Edwards
|47%
|Mike Huckabee
|41%
|-
|John Edwards
|44%
|Rudy Giuliani
|45%
|-
|John Edwards
|42%
|John McCain
|46%
|-
|John Edwards
|51%
|Fred Thomson
|35%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 12–13, 2007
|John Edwards
|46%
|John McCain
|39%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|John Edwards
|49%
|Mike Huckabee
|37%
|-
| rowspan="4" |George Washington University/Tarrance Group/Lake Research Group
| rowspan="4" |Dec 9–12, 2007
|Hillary Clinton
|50%
|Rudy Giuliani
|44%
| rowspan="4" |1,000 LV
| rowspan="4" |±3.1%
|-
|Hillary Clinton
|50%
|Mitt Romney
|44%
|-
|Barack Obama
|46%
|Rudy Giuliani
|43%
|-
|Barack Obama
|48%
|Mitt Romney
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 10–11, 2007
|Barack Obama
|43%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|45%
|Mitt Romney
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 7–9, 2007
|Barack Obama
|50%
|Ron Paul
|31%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|49%
|Ron Paul
|37%
|-
|rowspan=12|CNN/Opinion Research Corporation
|rowspan=12|Dec 6–9, 2007
|John Edwards
|52%
|John McCain
|44%
| rowspan="12" |912 RV
| rowspan="12" |±3%
|-
|John Edwards
|53%
|Rudy Giuliani
|44%
|-
|John Edwards
|59%
|Mitt Romney
|37%
|-
|John Edwards
|60%
|Mike Huckabee
|35%
|-
|Barack Obama
|48%
|John McCain
|48%
|-
|Barack Obama
|52%
|Rudy Giualiani
|45%
|-
|Barack Obama
|54%
|Mitt Romney
|41%
|-
|Barack Obama
|55%
|Mike Huckabee
|40%
|-
|Hillary Clinton
|48%
|John McCain
|50%
|-
|Hillary Clinton
|51%
|Rudy Giuliani
|45%
|-
|Hillary Clinton
|54%
|Mike Huckabee
|44%
|-
|Hillary Clinton
|54%
|Mitt Romney
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 5–6, 2007
|John Edwards
|44%
|Rudy Giuliani
|44%
| rowspan="2" |800 LV
| rowspan="2" |±4.5%
|-
|John Edwards
|44%
|Mike Huckabee
|40%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 3–4, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±4.5%
|-
|Hillary Clinton
|46%
|Mitt Romney
|43%
|-
|rowspan=4|Los Angeles Times/Bloomberg
|rowspan=4|Nov 30 – Dec 3, 2007
|Barack Obama
|44%
|Rudy Giuliani
|39%
| rowspan="4" |1,245 RV
| rowspan="4" |±3%
|-
|Barack Obama
|45%
|Mitt Romney
|33%
|-
|Hillary Clinton
|46%
|Rudy Giuliani
|42%
|-
|Hillary Clinton
|47%
|Mitt Romney
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 30 – Dec 2, 2007
|Barack Obama
|45%
|Mike Huckabee
|41%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|46%
|Mike Huckabee
|45%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 28–29, 2007
|Barack Obama
|44%
|John McCain
|44%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|48%
|Mitt Romney
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 26–27, 2007
|Barack Obama
|43%
|Rudy Giuliani
|41%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|48%
|Fred Thompson
|41%
|-
|rowspan=15|Zogby Interactive
|rowspan=15|Nov 21–26, 2007
|Barack Obama
|46%
|Rudy Giuliani
|41%
| rowspan="15" |9,150 LV
| rowspan="15" |±1%
|-
|Barack Obama
|46%
|Mike Huckabee
|40%
|-
|Barack Obama
|46%
|Mitt Romney
|40%
|-
|Barack Obama
|47%
|Fred Thompson
|40%
|-
|Barack Obama
|45%
|John McCain
|38%
|-
|John Edwards
|42%
|John McCain
|42%
|-
|John Edwards
|43%
|Rudy Giuliani
|42%
|-
|John Edwards
|43%
|Mike Huckabee
|42%
|-
|John Edwards
|44%
|Mitt Romney
|42%
|-
|John Edwards
|45%
|Fred Thompson
|42%
|-
|Hillary Clinton
|39%
|Mike Huckabee
|44%
|-
|Hillary Clinton
|40%
|Fred Thompson
|44%
|-
|Hillary Clinton
|38%
|John McCain
|42%
|-
|Hillary Clinton
|40%
|Rudy Giuliani
|43%
|-
|Hillary Clinton
|40%
|Mitt Romney
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 19–20, 2007
|Hillary Clinton
|42%
|Rudy Giuliani
|46%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|46%
|Fred Thompson
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
|rowspan=4|Nov 13–14, 2007
|Hillary Clinton
|46%
|John McCain
|45%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|47%
|Rudy Giuliani
|43%
|-
|Hillary Clinton
|49%
|Fred Thompson
|40%
|-
|Hillary Clinton
|50%
|Mitt Romney
|37%
|-
| rowspan="8" |USA Today/Gallup
| rowspan="8" |Nov 11–14, 2007
|Hillary Clinton
|49%
|Rudy Giuliani
|44%
| rowspan="8" |897 RV
| rowspan="8" |±4%
|-
|Hillary Clinton
|50%
|John McCain
|44%
|-
|Hillary Clinton
|54%
|Mitt Romney
|38%
|-
|Hillary Clinton
|53%
|Fred Thompson
|40%
|-
|Barack Obama
|45%
|Rudy Giuliani
|45%
|-
|Barack Obama
|47%
|John McCain
|44%
|-
|Barack Obama
|52%
|Mitt Romney
|35%
|-
|Barack Obama
|51%
|Fred Thompson
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 7–8, 2007
|Hillary Clinton
|45%
|John McCain
|47%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|47%
|Mitt Romney
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 5–6, 2007
|Hillary Clinton
|48%
|Rudy Giuliani
|42%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|48%
|Fred Thompson
|42%
|-
| rowspan="8" |NBC News/Wall Street Journal
| rowspan="8" |Nov 1–5, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|45%
| rowspan="3" |1,509 A
| rowspan="3" |±2.5%
|-
|Hillary Clinton
|50%
|Mitt Romney
|39%
|-
|Barack Obama
|44%
|Rudy Giuliani
|42%
|-
|Hillary Clinton
|51%
|Fred Thompson
|37%
| rowspan="5" |Not reported
| rowspan="5" |Not reported
|-
|Hillary Clinton
|47%
|John McCain
|43%
|-
|Barack Obama
|48%
|Mitt Romney
|34%
|-
|John Edwards
|45%
|Rudy Giuliani
|44%
|-
|Al Gore
|46%
|Rudy Giuliani
|47%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 2–4, 2007
|Barack Obama
|49%
|Mike Huckabee
|38%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|46%
|Mike Huckabee
|43%
|-
|USA Today/Gallup
|Nov 2–4, 2007
|Hillary Clinton
|51%
|Rudy Giuliani
|45%
|1,024 A
|±3%
|-
|CNN/Opinion Research Corporation
|Nov 2–4, 2007
|Hillary Clinton
|51%
|Rudy Giuliani
|45%
|929 RV
|±3%
|-
| rowspan="9" |Newsweek/Princeton Survey Research Associates International
| rowspan="9" |Oct 31 – Nov 1, 2007
|Hillary Clinton
|49%
|Rudy Giuliani
|45%
| rowspan="9" |1,002 RV
| rowspan="9" |±4%
|-
|Hillary Clinton
|49%
|Fred Thompson
|45%
|-
|Hillary Clinton
|49%
|Mitt Romney
|45%
|-
|John Edwards
|48%
|Rudy Giuliani
|45%
|-
|John Edwards
|53%
|Fred Thompson
|39%
|-
|John Edwards
|53%
|Mitt Romney
|37%
|-
|Barack Obama
|48%
|Rudy Giuliani
|45%
|-
|Barack Obama
|52%
|Fred Thompson
|39%
|-
|Barack Obama
|53%
|Mitt Romney
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 31 – Nov 1, 2007
|John Edwards
|47%
|John McCain
|38%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|John Edwards
|50%
|Mitt Romney
|34%
|-
|WNBC/Marist College
|Oct 29 – Nov 1, 2007
|Hillary Clinton
|50%
|Rudy Giuliani
|40%
|811 RV
|±3.5%
|-
| rowspan="4" |ABC News/Washington Post
| rowspan="4" |Oct 29 – Nov 1, 2007
|Hillary Clinton
|50%
|Rudy Giuliani
|46%
| rowspan="4" |1,131 A
| rowspan="4" |±3%
|-
|Hillary Clinton
|52%
|John McCain
|43%
|-
|Hillary Clinton
|56%
|Fred Thompson
|40%
|-
|Hillary Clinton
|57%
|Mitt Romney
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 29–30, 2007
|Barack Obama
|43%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|44%
|Fred Thompson
|43%
|-
| rowspan="12" |Quinnipiac University
| rowspan="12" |Oct 23–29, 2007
|Barack Obama
|43%
|John McCain
|43%
| rowspan="12" |1,636 RV
| rowspan="12" |±2.4%
|-
|Barack Obama
|43%
|Rudy Giuliani
|42%
|-
|Barack Obama
|45%
|Fred Thompson
|37%
|-
|Barack Obama
|46%
|Mitt Romney
|36%
|-
|Hillary Clinton
|43%
|Rudy Giuliani
|45%
|-
|Hillary Clinton
|44%
|John McCain
|44%
|-
|Hillary Clinton
|46%
|Fred Thompson
|41%
|-
|Hillary Clinton
|48%
|Mitt Romney
|38%
|-
|John Edwards
|41%
|Rudy Giuliani
|44%
|-
|John Edwards
|42%
|John McCain
|42%
|-
|John Edwards
|46%
|Fred Thompson
|36%
|-
|John Edwards
|47%
|Mitt Romney
|34%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 26–28, 2007
|Stephen Colbert
|36%
|Ron Paul
|32%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Dennis Kucinich
|32%
|Stephen Colbert
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 24–25, 2007
|John Edwards
|44%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|John Edwards
|48%
|Fred Thompson
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 22–23, 2007
|Hillary Clinton
|44%
|Rudy Giuliani
|46%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|47%
|Fred Thompson
|45%
|-
| rowspan="2" |Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="2" |Oct 21–23, 2007
|Hillary Clinton
|49%
|Rudy Giuliani
|45%
| rowspan="2" |994 LV
| rowspan="2" |Not reported
|-
|Hillary Clinton
|51%
|Fred Thompson
|44%
|-
|Pew Research Center
|Oct 17–23, 2007
|Hillary Clinton
|51%
|Rudy Giuliani
|43%
|1607 RV
|Not reported
|-
|rowspan=8|Los Angeles Times/Bloomberg
|rowspan=8|Oct 19–22, 2007
|Hillary Clinton
|47%
|Rudy Giuliani
|41%
| rowspan="4" |512 RV
| rowspan="8" |±4%
|-
|Hillary Clinton
|48%
|John McCain
|38%
|-
|Hillary Clinton
|49%
|Fred Thompson
|38%
|-
|Hillary Clinton
|49%
|Mitt Romney
|34%
|-
|Barack Obama
|43%
|Rudy Giuliani
|40%
| rowspan="4" |522 RV
|-
|Barack Obama
|44%
|John McCain
|36%
|-
|Barack Obama
|42%
|Mitt Romney
|32%
|-
|Barack Obama
|46%
|Fred Thompson
|31%
|-
| rowspan="2" |Cook Political Report/RT Strategies
| rowspan="2" |Oct 18–21, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|39%
| rowspan="2" |855 RV
| rowspan="2" |±3.4%
|-
|Hillary Clinton
|46%
|Mitt Romney
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 15–16, 2007
|Barack Obama
|44%
|John McCain
|45%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|48%
|Mitt Romney
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 15–16, 2007
|Barack Obama
|46%
|Rudy Giuliani
|41%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|47%
|Fred Thompson
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 12–14, 2007
|Barack Obama
|50%
|Ron Paul
|33%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|48%
|Ron Paul
|38%
|-
|CNN/Opinion Research Corporation
|Oct 12–14, 2007
|Hillary Clinton
|49%
|Rudy Giuliani
|47%
|927 RV
|±3%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 10–11, 2007
|Hillary Clinton
|44%
|John McCain
|43%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|47%
|Mitt Romney
|41%
|-
|rowspan=4|Fox News/Opinion Dynamics Corporation
|rowspan=4|Oct 9–10, 2007
|Hillary Clinton
|47%
|John McCain
|44%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|47%
|Rudy Giuliani
|43%
|-
|Hillary Clinton
|50%
|Fred Thompson
|38%
|-
|Hillary Clinton
|50%
|Mitt Romney
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 8–9, 2007
|Hillary Clinton
|48%
|Rudy Giuliani
|41%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|52%
|Fred Thompson
|37%
|-
|rowspan=4|NPR/Public Opinion Research/Greenberg Quinlan Rosner
|rowspan=4|Oct 4–7, 2007
|Hillary Clinton
|47%
|Rudy Giuliani
|44%
| rowspan="4" |800 LV
| rowspan="4" |±3.46%
|-
|Barack Obama
|44%
|Rudy Giuliani
|44%
|-
|Barack Obama
|48%
|Fred Thompson
|39%
|-
|Hillary Clinton
|50%
|Fred Thompson
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 3–4, 2007
|John Edwards
|47%
|John McCain
|40%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|John Edwards
|52%
|Mitt Romney
|35%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Oct 1–2, 2007
|Barack Obama
|47%
|Rudy Giuliani
|42%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|49%
|Fred Thompson
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 28–30, 2007
|Barack Obama
|47%
|Mike Huckabee
|38%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|48%
|Mike Huckabee
|40%
|-
|ABC News/Washington Post
|Sep 27–30, 2007
|Hillary Clinton
|51%
|Rudy Giuliani
|43%
|1,114 A
|±3%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 26–27, 2007
|John Edwards
|50%
|Rudy Giuliani
|41%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|John Edwards
|49%
|Fred Thompson
|39%
|-
|rowspan=6|Fox News/Opinion Dynamics Corporation
|rowspan=6|Sep 25–26, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|39%
| rowspan="6" |900 RV
| rowspan="6" |±3%
|-
|Hillary Clinton
|46%
|John McCain
|39%
|-
|Hillary Clinton
|48%
|Fred Thompson
|35%
|-
|Barack Obama
|41%
|Rudy Giuliani
|40%
|-
|Barack Obama
|40%
|John McCain
|38%
|-
|Barack Obama
|45%
|Fred Thompson
|33%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 24–25, 2007
|Hillary Clinton
|48%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|49%
|Fred Thompson
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 21–23, 2007
|Bill Richardson
|40%
|Rudy Giuliani
|43%
| rowspan="2" |1,200 LV
| rowspan="2" |±2.9%
|-
|Bill Richardson
|41%
|Fred Thompson
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 19–20, 2007
|Barack Obama
|46%
|Mitt Romney
|43%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|46%
|John McCain
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
|Sep 13–16, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|43%
|855 RV
|±3.4%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 12–13, 2007
|Hillary Clinton
|46%
|John McCain
|45%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|49%
|Mitt Romney
|40%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 10–11, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|48%
|Fred Thompson
|43%
|-
|rowspan=6|NBC News/Wall Street Journal
|rowspan=6|Sep 7–10, 2007
|Hillary Clinton
|49%
|Rudy Giuliani
|42%
| rowspan="6" |1,002 A
| rowspan="6" |±3.1%
|-
|Hillary Clinton
|50%
|Fred Thompson
|41%
|-
|Hillary Clinton
|51%
|Mitt Romney
|38%
|-
|Hillary Clinton
|50%
|Mike Huckabee
|36%
|-
|Barack Obama
|47%
|Fred Thompson
|38%
|-
|Barack Obama
|51%
|Mitt Romney
|34%
|-
|rowspan=4|CNN/Opinion Research Corporation
|rowspan=4|Sep 7–9, 2007
|Hillary Clinton
|50%
|Rudy Giuliani
|46%
| rowspan="4" |914 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|55%
|Fred Thompson
|42%
|-
|Barack Obama
|45%
|Rudy Giuliani
|49%
|-
|Barack Obama
|53%
|Fred Thompson
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Sep 4, 2007
|Barack Obama
|44%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|46%
|Fred Thompson
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 29–30, 2007
|John Edwards
|45%
|John McCain
|41%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|John Edwards
|49%
|Mitt Romney
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 27–28, 2007
|Hillary Clinton
|44%
|Rudy Giuliani
|47%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|48%
|Fred Thompson
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 24–26, 2007
|Barack Obama
|48%
|Tom Tancredo
|31%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|50%
|Tom Tancredo
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 22–23, 2007
|John Edwards
|49%
|Rudy Giuliani
|41%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|49%
|Fred Thompson
|35%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 20–21, 2007
|Barack Obama
|45%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|45%
|Fred Thompson
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 17–19, 2007
|Barack Obama
|48%
|Mike Huckabee
|39%
| rowspan="2" |1,200 LV
| rowspan="2" |±2.9%
|-
|Hillary Clinton
|49%
|Mike Huckabee
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 15–16, 2007
|Hillary Clinton
|46%
|John McCain
|44%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|51%
|Mitt Romney
|40%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 13–14, 2007
|Hillary Clinton
|40%
|Rudy Giuliani
|47%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|46%
|Fred Thompson
|43%
|-
|rowspan=9|Quinnipiac University
|rowspan=9|Aug 7–13, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|43%
| rowspan="9" |1,545 RV
| rowspan="9" |±2.5%
|-
|Hillary Clinton
|47%
|John McCain
|41%
|-
|Hillary Clinton
|49%
|Fred Thompson
|38%
|-
|John Edwards
|43%
|Rudy Giuliani
|42%
|-
|John Edwards
|45%
|John McCain
|37%
|-
|John Edwards
|49%
|Fred Thompson
|32%
|-
|Barack Obama
|42%
|Rudy Giuliani
|42%
|-
|Barack Obama
|43%
|John McCain
|39%
|-
|Barack Obama
|46%
|Fred Thompson
|35%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 10–12, 2007
|Joe Biden
|34%
|Rudy Giuliani
|50%
| rowspan="2" |1,200 LV
| rowspan="2" |±2.8%
|-
|Joe Biden
|39%
|Fred Thompson
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 8–9, 2007
|John Edwards
|46%
|Rudy Giuliani
|44%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|John Edwards
|47%
|Fred Thompson
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 6–7, 2007
|Barack Obama
|44%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±3.5%
|-
|Barack Obama
|46%
|Fred Thompson
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 3–5, 2007
|Bill Richardson
|39%
|Rudy Giuliani
|47%
| rowspan="2" |1,200 LV
| rowspan="2" |±2.9%
|-
|Bill Richardson
|40%
|Fred Thompson
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Aug 1–2, 2007
|Barack Obama
|46%
|John McCain
|40%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|45%
|John McCain
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 30–31, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|46%
| rowspan="2" |839 LV
| rowspan="2" |±3.5%
|-
|Hillary Clinton
|45%
|Fred Thompson
|46%
|-
| rowspan="2" |NBC News/Wall Street Journal
| rowspan="2" |Jul 27–30, 2007
|Hillary Clinton
|47%
|Rudy Giuliani
|41%
| rowspan="2" |1,005 A
| rowspan="2" |±3.1%
|-
|Barack Obama
|45%
|Rudy Giuliani
|40%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 27–29, 2007
|Dennis Kucinich
|34%
|Rudy Giuliani
|48%
| rowspan="2" |1,200 LV
| rowspan="2" |±2.9%
|-
|Dennis Kucinich
|34%
|Fred Thompson
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 25–26, 2007
|John Edwards
|49%
|Rudy Giuliani
|42%
| rowspan="2" |643 LV
| rowspan="2" |±4%
|-
|John Edwards
|50%
|Fred Thompson
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 23–24, 2007
|Barack Obama
|47%
|Rudy Giuliani
|41%
| rowspan="2" |1,472 LV
| rowspan="2" |±2.6%
|-
|Barack Obama
|46%
|Fred Thompson
|40%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 20–22, 2007
|Barack Obama
|50%
|Ron Paul
|30%
| rowspan="2" |1,461 LV
| rowspan="2" |±2.6%
|-
|Hillary Clinton
|49%
|Ron Paul
|34%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 18–19, 2007
|John Edwards
|45%
|Mitt Romney
|38%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|52%
|John McCain
|36%
|-
|rowspan=7|Fox News/Opinion Dynamics Corporation
|rowspan=7|Jul 17–18, 2007
|Hillary Clinton
|45%
|John McCain
|42%
| rowspan="7" |900 RV
| rowspan="7" |±3%
|-
|Hillary Clinton
|46%
|Rudy Giuliani
|41%
|-
|Hillary Clinton
|47%
|Fred Thompson
|38%
|-
|Hillary Clinton
|50%
|Mitt Romney
|35%
|-
|Barack Obama
|45%
|Rudy Giuliani
|41%
|-
|Barack Obama
|47%
|John McCain
|37%
|-
|Barack Obama
|48%
|Fred Thompson
|32%
|-
|rowspan=4|George Washington University/Tarrance Group/Lake Research Group
|rowspan=4|Jul 15–18, 2007
|Barack Obama
|52%
|Rudy Giuliani
|43%
| rowspan="4" |1,000 LV
| rowspan="4" |±3.1%
|-
|Barack Obama
|56%
|Fred Thompson
|36%
|-
|Hillary Clinton
|44%
|Rudy Giuliani
|50%
|-
|Hillary Clinton
|47%
|Fred Thompson
|45%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 16–17, 2007
|Barack Obama
|47%
|Mitt Romney
|38%
| rowspan="2" |1,029 LV
| rowspan="2" |±3%
|-
|Barack Obama
|47%
|John McCain
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 13–15, 2007
|Joe Biden
|37%
|Rudy Giuliani
|46%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Joe Biden
|38%
|Fred Thompson
|40%
|-
|rowspan=4|USA Today/Gallup
|rowspan=4|Jul 12–15, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|49%
| rowspan="4" |908 RV
| rowspan="4" |±4%
|-
|Hillary Clinton
|48%
|Fred Thompson
|45%
|-
|Barack Obama
|45%
|Rudy Giuliani
|49%
|-
|Barack Obama
|51%
|Fred Thompson
|40%
|-
|rowspan=12|Zogby America Poll
|rowspan=12|Jul 12–14, 2007
|Hillary Clinton
|45%
|John McCain
|43%
| rowspan="12" |1,012 LV
| rowspan="12" |±3.1%
|-
|Hillary Clinton
|47%
|Rudy Giuliani
|41%
|-
|Hillary Clinton
|48%
|Fred Thompson
|41%
|-
|Hillary Clinton
|48%
|Mitt Romney
|38%
|-
|Barack Obama
|45%
|John McCain
|42%
|-
|Barack Obama
|46%
|Rudy Giuliani
|42%
|-
|Barack Obama
|48%
|Fred Thompson
|40%
|-
|Barack Obama
|49%
|Mitt Romney
|35%
|-
|John Edwards
|43%
|Rudy Giuliani
|46%
|-
|John Edwards
|43%
|John McCain
|43%
|-
|John Edwards
|46%
|Fred Thompson
|40%
|-
|John Edwards
|47%
|Mitt Romney
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jul 9–10, 2007
|Hillary Clinton
|44%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|47%
|John McCain
|38%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 27–28, 2007
|Hillary Clinton
|45%
|Fred Thompson
|45%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|46%
|Mitt Romney
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 25–26, 2007
|John Edwards
|45%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|50%
|Fred Thompson
|41%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 22–24, 2007
|Barack Obama
|41%
|Rudy Giuliani
|44%
| rowspan="2" |1,200 LV
| rowspan="2" |±3%
|-
|Barack Obama
|43%
|Fred Thompson
|41%
|-
|rowspan=6|CNN/Opinion Research Corporation
|rowspan=6|Jun 22–24, 2007
|Hillary Clinton
|49%
|Rudy Giuliani
|48%
| rowspan="6" |907 RV
| rowspan="6" |±3.5%
|-
|Hillary Clinton
|50%
|Fred Thompson
|46%
|-
|Hillary Clinton
|49%
|John McCain
|47%
|-
|Barack Obama
|46%
|Rudy Giuliani
|48%
|-
|Barack Obama
|52%
|Fred Thompson
|40%
|-
|Barack Obama
|48%
|John McCain
|44%
|-
|rowspan=6|Cook Political Report/RT Strategies
|rowspan=6|Jun 21–23, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|44%
| rowspan="6" |844 RV
| rowspan="6" |±3.4%
|-
|Hillary Clinton
|45%
|Fred Thompson
|40%
|-
|Hillary Clinton
|48%
|Mitt Romney
|38%
|-
|Barack Obama
|42%
|Rudy Giuliani
|41%
|-
|Barack Obama
|46%
|Fred Thompson
|35%
|-
|Barack Obama
|47%
|Mitt Romney
|34%
|-
|rowspan=12|Newsweek/Princeton Survey Research Associates International
|rowspan=12|Jun 20–21, 2007
|Hillary Clinton
|51%
|Rudy Giuliani
|44%
| rowspan="12" |831 RV
| rowspan="12" |±4%
|-
|Hillary Clinton
|53%
|Fred Thompson
|42%
|-
|Hillary Clinton
|50%
|John McCain
|45%
|-
|Hillary Clinton
|55%
|Mitt Romney
|40%
|-
|Barack Obama
|49%
|Rudy Giuliani
|44%
|-
|Barack Obama
|53%
|Fred Thompson
|39%
|-
|Barack Obama
|51%
|John McCain
|41%
|-
|Barack Obama
|53%
|Mitt Romney
|37%
|-
|John Edwards
|48%
|Rudy Giuliani
|46%
|-
|John Edwards
|54%
|Fred Thompson
|38%
|-
|John Edwards
|50%
|John McCain
|44%
|-
|John Edwards
|57%
|Mitt Romney
|36%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 20–21, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|46%
| rowspan="2" |792 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|46%
|John McCain
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 18–19, 2007
|Bill Richardson
|38%
|Rudy Giuliani
|44%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Bill Richardson
|35%
|Fred Thompson
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 15–17, 2007
|John Edwards
|49%
|John McCain
|36%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|51%
|Mitt Romney
|33%
|-
|rowspan=6|Cook Political Report/RT Strategies
|rowspan=6|Jun 15–17, 2007
|Hillary Clinton
|42%
|Rudy Giuliani
|42%
| rowspan="6" |855 RV
| rowspan="6" |±3.4%
|-
|Hillary Clinton
|42%
|Fred Thompson
|42%
|-
|Hillary Clinton
|45%
|Mitt Romney
|38%
|-
|Barack Obama
|42%
|Rudy Giuliani
|42%
|-
|Barack Obama
|46%
|Fred Thompson
|33%
|-
|Barack Obama
|47%
|Mitt Romney
|31%
|-
|Rasmussen Reports/Pulse Opinion Research
|Jun 13–14, 2007
|Barack Obama
|46%
|John McCain
|38%
|800 LV
|±4%
|-
|rowspan=9|USA Today/Gallup
|rowspan=9|Jun 11–14, 2007
|Hillary Clinton
|50%
|Rudy Giuliani
|46%
| rowspan="9" |927 RV
| rowspan="9" |±4%
|-
|Hillary Clinton
|49%
|John McCain
|46%
|-
|Hillary Clinton
|53%
|Mitt Romney
|40%
|-
|Barack Obama
|50%
|Rudy Giuliani
|45%
|-
|Barack Obama
|48%
|John McCain
|46%
|-
|Barack Obama
|57%
|Mitt Romney
|36%
|-
|John Edwards
|50%
|Rudy Giuliani
|45%
|-
|John Edwards
|50%
|John McCain
|44%
|-
|John Edwards
|61%
|Mitt Romney
|32%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 11–12, 2007
|Hillary Clinton
|48%
|Fred Thompson
|43%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|50%
|Mitt Romney
|41%
|-
| rowspan="2" |NBC News/Wall Street Journal
| rowspan="2" |Jun 8–11, 2007
|Hillary Clinton
|48%
|Rudy Giuliani
|43%
| rowspan="2" |1,008 A
| rowspan="2" |±3.1%
|-
|Barack Obama
|50%
|Fred Thompson
|31%
|-
|rowspan=9|Quinnipiac University
|rowspan=9|Jun 5–11, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|44%
| rowspan="9" |1,711 RV
| rowspan="9" |±2.4%
|-
|Hillary Clinton
|44%
|John McCain
|42%
|-
|Hillary Clinton
|46%
|Fred Thompson
|39%
|-
|Barack Obama
|42%
|Rudy Giuliani
|42%
|-
|Barack Obama
|43%
|John McCain
|41%
|-
|Barack Obama
|46%
|Fred Thompson
|34%
|-
|Al Gore
|45%
|Rudy Giuliani
|43%
|-
|Al Gore
|44%
|John McCain
|41%
|-
|Al Gore
|49%
|Fred Thompson
|37%
|-
| rowspan="9" |Los Angeles Times/Bloomberg
| rowspan="9" |Jun 7–10, 2007
|Hillary Clinton
|41%
|John McCain
|45%
| rowspan="5" |513 RV
| rowspan="9" |±4%
|-
|Hillary Clinton
|39%
|Rudy Giuliani
|49%
|-
|Hillary Clinton
|41%
|Mitt Romney
|43%
|-
|John Edwards
|40%
|John McCain
|45%
|-
|John Edwards
|46%
|Mitt Romney
|32%
|-
|Barack Obama
|46%
|Rudy Giuliani
|41%
| rowspan="4" |543 RV
|-
|Barack Obama
|47%
|John McCain
|35%
|-
|Barack Obama
|50%
|Mitt Romney
|34%
|-
|John Edwards
|46%
|Rudy Giuliani
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 6–7, 2007
|John Edwards
|47%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|51%
|Fred Thompson
|38%
|-
|rowspan=6|FOX News/Opinion Dynamics Poll
|rowspan=6|Jun 5–6, 2007
|Hillary Clinton
|42%
|Rudy Giuliani
|45%
| rowspan="6" |900 RV
| rowspan="6" |±3%
|-
|Hillary Clinton
|43%
|John McCain
|43%
|-
|Hillary Clinton
|48%
|Fred Thompson
|38%
|-
|Hillary Clinton
|46%
|Mitt Romney
|36%
|-
|Barack Obama
|41%
|Rudy Giuliani
|46%
|-
|Barack Obama
|47%
|Fred Thompson
|34%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jun 4–5, 2007
|Barack Obama
|39%
|Rudy Giuliani
|51%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Barack Obama
|47%
|Fred Thompson
|44%
|-
|USA Today/Gallup
|Jun 1–3, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|52%
|1,004 A
|±3%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |May 30–31, 2007
|Hillary Clinton
|44%
|Rudy Giuliani
|47%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|42%
|John McCain
|48%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |May 29, 2007
|Bill Richardson
|39%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Bill Richardson
|38%
|John McCain
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |May 21–22, 2007
|Hillary Clinton
|48%
|Mike Huckabee
|43%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|49%
|Sam Brownback
|41%
|-
|rowspan=16|Zogby International
|rowspan=16|May 17–20, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|48%
| rowspan="16" |993 LV
| rowspan="16" |±3.2%
|-
|Hillary Clinton
|43%
|John McCain
|47%
|-
|Hillary Clinton
|48%
|Fred Thompson
|41%
|-
|Hillary Clinton
|48%
|Mitt Romney
|40%
|-
|Barack Obama
|48%
|Rudy Giuliani
|42%
|-
|Barack Obama
|46%
|John McCain
|43%
|-
|Barack Obama
|52%
|Fred Thompson
|35%
|-
|Barack Obama
|52%
|Mitt Romney
|35%
|-
|John Edwards
|43%
|Rudy Giuliani
|47%
|-
|John Edwards
|41%
|John McCain
|46%
|-
|John Edwards
|48%
|Fred Thompson
|40%
|-
|John Edwards
|50%
|Mitt Romney
|36%
|-
|Bill Richardson
|35%
|Rudy Giuliani
|50%
|-
|Bill Richardson
|31%
|John McCain
|52%
|-
|Bill Richardson
|39%
|Fred Thompson
|40%
|-
|Bill Richardson
|40%
|Mitt Romney
|37%
|-
|rowspan=6|Diageo/The Hotline/Financial Dynamics
|rowspan=6|May 16–20, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|45%
| rowspan="6" |800 RV
| rowspan="6" |±3.5%
|-
|Hillary Clinton
|45%
|John McCain
|43%
|-
|Barack Obama
|43%
|Rudy Giuliani
|41%
|-
|Barack Obama
|42%
|John McCain
|39%
|-
|John Edwards
|42%
|Rudy Giuliani
|43%
|-
|John Edwards
|44%
|John McCain
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |May 16–17, 2007
|John Edwards
|53%
|Fred Thompson
|32%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|54%
|Mitt Romney
|33%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |May 14–15, 2007
|Barack Obama
|49%
|Fred Thompson
|42%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Barack Obama
|49%
|Mitt Romney
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |May 9–10, 2007
|Hillary Clinton
|47%
|Fred Thompson
|44%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|47%
|Mitt Romney
|44%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |May 7–8, 2007
|John Edwards
|47%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|48%
|John McCain
|41%
|-
|rowspan=9|Newsweek/Princeton Survey Research Associates International
|rowspan=9|May 2–3, 2007
|Hillary Clinton
|49%
|Rudy Giuliani
|46%
| rowspan="9" |831 RV
| rowspan="9" |±4%
|-
|Hillary Clinton
|50%
|John McCain
|44%
|-
|Hillary Clinton
|57%
|Mitt Romney
|35%
|-
|Barack Obama
|50%
|Rudy Giuliani
|43%
|-
|Barack Obama
|52%
|John McCain
|39%
|-
|Barack Obama
|58%
|Mitt Romney
|29%
|-
|John Edwards
|50%
|Rudy Giuliani
|44%
|-
|John Edwards
|52%
|John McCain
|42%
|-
|John Edwards
|64%
|Mitt Romney
|27%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Apr 30 – May 1, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|45%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|48%
|John McCain
|44%
|-
| rowspan="6" |WNBC/Marist College
| rowspan="6" |Apr 26 – May 1, 2007
|Hillary Clinton
|48%
|Rudy Giuliani
|43%
| rowspan="6" |822 RV
| rowspan="6" |±3.5%
|-
|Hillary Clinton
|47%
|John McCain
|42%
|-
|Barack Obama
|41%
|Rudy Giuliani
|43%
|-
|John Edwards
|49%
|Rudy Giuliani
|43%
|-
|Barack Obama
|39%
|John McCain
|46%
|-
|John Edwards
|49%
|John McCain
|39%
|-
| rowspan="9" |Quinnipiac University
| rowspan="9" |Apr 25 – May 1, 2007
|Hillary Clinton
|40%
|Rudy Giuliani
|49%
| rowspan="9" |1,166 RV
| rowspan="9" |±2.9%
|-
|Barack Obama
|41%
|Rudy Giuliani
|44%
|-
|Al Gore
|41%
|Rudy Giuliani
|48%
|-
|Hillary Clinton
|41%
|John McCain
|46%
|-
|Barack Obama
|42%
|John McCain
|42%
|-
|Al Gore
|41%
|John McCain
|47%
|-
|Hillary Clinton
|46%
|Fred Thompson
|39%
|-
|Barack Obama
|47%
|Fred Thompson
|34%
|-
|Al Gore
|47%
|Fred Thompson
|37%
|-
| rowspan="9" |Diageo/The Hotline/Financial Dynamics
| rowspan="9" |Apr 26–30, 2007
|Hillary Clinton
|41%
|Rudy Giuliani
|44%
| rowspan="9" |801 RV
| rowspan="9" |±3.5%
|-
|Hillary Clinton
|42%
|John McCain
|43%
|-
|Hillary Clinton
|47%
|Mitt Romney
|33%
|-
|Barack Obama
|45%
|Rudy Giuliani
|36%
|-
|Barack Obama
|46%
|John McCain
|34%
|-
|Barack Obama
|50%
|Mitt Romney
|23%
|-
|John Edwards
|44%
|Rudy Giuliani
|38%
|-
|John Edwards
|45%
|John McCain
|36%
|-
|John Edwards
|49%
|Mitt Romney
|24%
|-
|NBC News/Wall Street Journal
|Apr 20–23, 2007
|Barack Obama
|45%
|John McCain
|39%
|1,004 A
|±3.1%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Apr 18–19, 2007
|Barack Obama
|43%
|Rudy Giuliani
|46%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Barack Obama
|47%
|Fred Thompson
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Apr 11–12, 2007
|Bill Richardson
|34%
|Rudy Giuliani
|51%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Bill Richardson
|42%
|Mitt Romney
|34%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Apr 9–10, 2007
|Barack Obama
|48%
|John McCain
|42%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Barack Obama
|52%
|Mitt Romney
|37%
|-
| rowspan="6" |Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI)
| rowspan="6" |April 5–9, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|48%
| rowspan="6" |1,102 RV
| rowspan="6" |±3%
|-
|Barack Obama
|45%
|Rudy Giuliani
|45%
|-
|Hillary Clinton
|49%
|Mitt Romney
|37%
|-
|Barack Obama
|54%
|Mitt Romney
|31%
|-
|Hillary Clinton
|44%
|John McCain
|46%
|-
|Barack Obama
|47%
|John McCain
|42%
|-
| rowspan="4" |Los Angeles Times/Bloomberg
| rowspan="4" |April 5−9, 2007
|Barack Obama
|48%
|John McCain
|40%
| rowspan="4" |603 RV
| rowspan="4" |±4%
|-
|Hillary Clinton
|45%
|John McCain
|42%
|-
|Hillary Clinton
|42%
|Rudy Giuliani
|48%
|-
|Barack Obama
|46%
|Rudy Giuliani
|42%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Apr 4–5, 2007
|John Edwards
|49%
|Rudy Giuliani
|43%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|50%
|Fred Thompson
|36%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Apr 2–3, 2007
|Hillary Clinton
|47%
|Rudy Giuliani
|48%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Hillary Clinton
|47%
|John McCain
|46%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Mar 28–29, 2007
|Barack Obama
|43%
|Rudy Giuliani
|44%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Barack Obama
|52%
|Mike Huckabee
|32%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Mar 26–27, 2007
|John Edwards
|47%
|John McCain
|38%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|55%
|Mitt Romney
|29%
|-
| rowspan="6" |Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI)
| rowspan="6" |March 23–26, 2007
|Hillary Clinton
|41%
|Rudy Giuliani
|50%
| rowspan="6" |1,102 RV
| rowspan="6" |±3%
|-
|Barack Obama
|44%
|Rudy Giuliani
|45%
|-
|Hillary Clinton
|42%
|John McCain
|48%
|-
|Barack Obama
|43%
|John McCain
|45%
|-
|Hillary Clinton
|51%
|Mitt Romney
|34%
|-
|Barack Obama
|53%
|Mitt Romney
|29%
|-
| rowspan="4" |McLaughlin & Associates
| rowspan="4" |March 21–25, 2007
|Hillary Clinton
|40%
|Rudy Giuliani
|42%
| rowspan="4" |1,000 LV
| rowspan="4" |±3.1%
|-
|Hillary Clinton
|38%
|John McCain
|44%
|-
|Barack Obama
|38%
|Rudy Giuliani
|40%
|-
|Barack Obama
|39%
|John McCain
|38%
|-
| rowspan="2" |Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="2" |Mar 21–22, 2007
|Hillary Clinton
|43%
|Fred Thompson
|44%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Barack Obama
|49%
|Fred Thompson
|37%
|-
| rowspan="4" |Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI)
| rowspan="4" |Mar 9–12, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|47%
| rowspan="4" |1,500 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|44%
|John McCain
|43%
|-
|Barack Obama
|44%
|Rudy Giuliani
|43%
|-
|Barack Obama
|44%
|John McCain
|41%
|-
| rowspan="4" |American Research Group
| rowspan="4" |Mar 2–5, 2007
|Hillary Clinton
|42%
|Rudy Giuliani
|48%
| rowspan="4" |2,104 LV
| rowspan="4" |±2.2%
|-
|Barack Obama
|41%
|Rudy Giuliani
|46%
|-
|Hillary Clinton
|42%
|John McCain
|45%
|-
|Barack Obama
|42%
|John McCain
|46%
|-
| rowspan="9" |Newsweek/Princeton Survey Research Associates International
| rowspan="9" |Feb 28 – Mar 1, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|47%
| rowspan="9" |1,202 RV
| rowspan="9" |±3%
|-
|Barack Obama
|43%
|Rudy Giuliani
|48%
|-
|John Edwards
|45%
|Rudy Giuliani
|47%
|-
|Hillary Clinton
|47%
|John McCain
|46%
|-
|Barack Obama
|45%
|John McCain
|43%
|-
|John Edwards
|48%
|John McCain
|43%
|-
|Hillary Clinton
|53%
|Mitt Romney
|38%
|-
|Barack Obama
|54%
|Mitt Romney
|34%
|-
|John Edwards
|58%
|Mitt Romney
|30%
|-
| rowspan="4" |Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI)
| rowspan="4" |Feb 23–26, 2007
|Hillary Clinton
|44%
|Rudy Giuliani
|47%
| rowspan="4" |1,144 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|46%
|John McCain
|45%
|-
|Barack Obama
|42%
|Rudy Giuliani
|47%
|-
|Barack Obama
|46%
|John McCain
|42%
|-
| rowspan="9" |Zogby International
| rowspan="9" |Feb 22–24, 2007
|Hillary Clinton
|40%
|Rudy Giuliani
|47%
| rowspan="9" |1,078 LV
| rowspan="9" |±3%
|-
|Hillary Clinton
|39%
|John McCain
|47%
|-
|Hillary Clinton
|45%
|Mitt Romney
|35%
|-
|Barack Obama
|46%
|Rudy Giuliani
|40%
|-
|Barack Obama
|44%
|John McCain
|40%
|-
|Barack Obama
|51%
|Mitt Romney
|29%
|-
|John Edwards
|40%
|Rudy Giuliani
|46%
|-
|John Edwards
|38%
|John McCain
|47%
|-
|John Edwards
|47%
|Mitt Romney
|32%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="9" |Feb 13–19, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|48%
| rowspan="9" |1,536 RV
| rowspan="9" |±2.5%
|-
|Hillary Clinton
|44%
|John McCain
|46%
|-
|Hillary Clinton
|49%
|Mitt Romney
|37%
|-
|Barack Obama
|40%
|Rudy Giuliani
|47%
|-
|Barack Obama
|43%
|John McCain
|43%
|-
|Barack Obama
|49%
|Mitt Romney
|29%
|-
|John Edwards
|40%
|Rudy Giuliani
|48%
|-
|John Edwards
|42%
|John McCain
|43%
|-
|John Edwards
|48%
|Mitt Romney
|32%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Feb 14–15, 2007
|Hillary Clinton
|48%
|Chuck Hagel
|40%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Barack Obama
|50%
|Chuck Hagel
|34%
|-
| rowspan="8" |WNBC/Marist College
| rowspan="8" |Feb 12–15, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|47%
| rowspan="8" |978 RV
| rowspan="8" |±3.5%
|-
|Barack Obama
|41%
|Rudy Giuliani
|45%
|-
|John Edwards
|44%
|Rudy Giuliani
|44%
|-
|Hillary Clinton
|46%
|John McCain
|46%
|-
|Barack Obama
|41%
|John McCain
|44%
|-
|John Edwards
|43%
|John McCain
|44%
|-
|Hillary Clinton
|49%
|Mitt Romney
|36%
|-
|Hillary Clinton
|56%
|Newt Gingrich
|36%
|-
| rowspan="2" |Fox News/Opinion Dynamics Corporation
| rowspan="2" |Feb 13–14, 2007
|Hillary Clinton
|40%
|Rudy Giuliani
|49%
| rowspan="2" |900 RV
| rowspan="2" |±3%
|-
|Barack Obama
|39%
|Rudy Giuliani
|45%
|-
| rowspan="4" |USA Today/Gallup
| rowspan="4" |Feb 9–11, 2007
|Hillary Clinton
|50%
|John McCain
|47%
| rowspan="4" |1,006 A
| rowspan="4" |±3%
|-
|Hillary Clinton
|48%
|Rudy Giuliani
|50%
|-
|Barack Obama
|48%
|John McCain
|48%
|-
|Barack Obama
|43%
|Rudy Giuliani
|52%
|-
| rowspan="2" |Times Union/Siena College
| rowspan="2" |Feb 6–9, 2007
|Hillary Clinton
|45%
|John McCain
|44%
| rowspan="2" |1,120 RV
| rowspan="2" |±2.9%
|-
|Hillary Clinton
|44%
|Rudy Giuliani
|45%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
| rowspan="9" |Jan 24–25, 2007
|Hillary Clinton
|50%
|John McCain
|44%
| rowspan="9" |837 RV
| rowspan="9" |±4%
|-
|Barack Obama
|48%
|John McCain
|42%
|-
|John Edwards
|48%
|John McCain
|44%
|-
|Hillary Clinton
|49%
|Rudy Giuliani
|46%
|-
|Barack Obama
|47%
|Rudy Giuliani
|44%
|-
|John Edwards
|46%
|Rudy Giuliani
|47%
|-
|Hillary Clinton
|56%
|Mitt Romney
|37%
|-
|Barack Obama
|56%
|Mitt Romney
|30%
|-
|John Edwards
|60%
|Mitt Romney
|26%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jan 22–23, 2007
|Bill Richardson
|34%
|Rudy Giuliani
|49%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|Bill Richardson
|39%
|John McCain
|43%
|-
| rowspan="3" |Time/Schulman, Ronca, & Bucuvalas, Inc. (SRBI)
| rowspan="3" |Jan 22–23, 2007
|Hillary Clinton
|47%
|John McCain
|47%
| rowspan="3" |1,064 RV
| rowspan="3" |±3%
|-
|Barack Obama
|42%
|John McCain
|49%
|-
|John Edwards
|42%
|John McCain
|49%
|-
|Cook Political Report/RT Strategies
|Jan 18–21, 2007
|Hillary Clinton
|42%
|John McCain
|48%
|872 RV
|±3.3%
|-
|rowspan=4|ABC News/Washington Post
|rowspan=4|Jan 16–19, 2007
|Hillary Clinton
|50%
|John McCain
|45%
| rowspan="4" |1,000 A
| rowspan="4" |±3%
|-
|Barack Obama
|47%
|John McCain
|45%
|-
|Barack Obama
|45%
|Rudy Giuliani
|49%
|-
|Hillary Clinton
|49%
|Rudy Giuliani
|47%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jan 17–18, 2007
|Barack Obama
|47%
|John McCain
|44%
| rowspan="2" |800 LV
| rowspan="2" |±4%
|-
|John Edwards
|46%
|John McCain
|43%
|-
|rowspan=6|Newsweek/Princeton Survey Research Associates International
|rowspan=6|Jan 17–18, 2007
|Hillary Clinton
|48%
|John McCain
|47%
| rowspan="6" |896 RV
| rowspan="6" |±4%
|-
|Barack Obama
|46%
|John McCain
|44%
|-
|John Edwards
|48%
|John McCain
|43%
|-
|Hillary Clinton
|47%
|Rudy Giuliani
|48%
|-
|Barack Obama
|45%
|Rudy Giuliani
|47%
|-
|John Edwards
|48%
|Rudy Giuliani
|45%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|rowspan=6|Jan 11–14, 2007
|Hillary Clinton
|39%
|John McCain
|48%
| rowspan="6" |800 RV
| rowspan="6" |±3.5%
|-
|Barack Obama
|38%
|John McCain
|43%
|-
|John Edwards
|35%
|John McCain
|45%
|-
|Hillary Clinton
|40%
|Rudy Giuliani
|48%
|-
|Barack Obama
|38%
|Rudy Giuliani
|41%
|-
|John Edwards
|41%
|Rudy Giuliani
|40%
|-
|rowspan=4|George Washington University Battleground Poll
|rowspan=4|Jan 8–11, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|53%
| rowspan="4" |1,000 LV
| rowspan="4" |±3.1%
|-
|Hillary Clinton
|43%
|John McCain
|53%
|-
|Barack Obama
|41%
|Rudy Giuliani
|50%
|-
|Barack Obama
|39%
|John McCain
|51%
|-
|rowspan=9|Investor's Business Daily/TIPP
|rowspan=9|Jan 2–4, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|48%
| rowspan="9" |951 A
| rowspan="9" |±3%
|-
|Barack Obama
|36%
|Rudy Giuliani
|49%
|-
|John Edwards
|42%
|Rudy Giuliani
|47%
|-
|Hillary Clinton
|41%
|John McCain
|48%
|-
|Barack Obama
|36%
|John McCain
|48%
|-
|John Edwards
|43%
|John McCain
|44%
|-
|Hillary Clinton
|48%
|Mitt Romney
|35%
|-
|Barack Obama
|43%
|Mitt Romney
|31%
|-
|John Edwards
|53%
|Mitt Romney
|29%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 18–19, 2006
|Al Gore
|43%
|Rudy Giuliani
|46%
| rowspan="2" |1,000 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|43%
|Rudy Giuliani
|47%
|-
|rowspan=6|CNN/Opinion Research Corporation
|rowspan=6|Dec 15–17, 2006
|Barack Obama
|43%
|John McCain
|47%
| rowspan="6" |1019
| rowspan="6" |±4.5%
|-
|Barack Obama
|42%
|Rudy Giuliani
|49%
|-
|Barack Obama
|51%
|Mitt Romney
|35%
|-
|Al Gore
|47%
|John McCain
|46%
|-
|Al Gore
|46%
|Rudy Giuliani
|46%
|-
|Al Gore
|53%
|Mitt Romney
|37%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 14–15, 2006
|Hillary Clinton
|45%
|John McCain
|49%
| rowspan="2" |1,000 LV
| rowspan="2" |±3%
|-
|Al Gore
|44%
|John McCain
|49%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 12–13, 2006
|John Edwards
|41%
|John McCain
|46%
| rowspan="2" |1,000 LV
| rowspan="2" |±3%
|-
|Barack Obama
|40%
|John McCain
|46%
|-
| rowspan="2" |Los Angeles Times/Bloomberg
| rowspan="2" |Dec 8–11, 2006
|Hillary Clinton
|36%
|John McCain
|50%
| rowspan="2" |1,555 A
| rowspan="2" |±3%
|-
|Hillary Clinton
|42%
|Mitt Romney
|36%
|-
|rowspan=4|NBC News/Wall Street Journal
|rowspan=4|Dec 8–11, 2006
|Hillary Clinton
|43%
|John McCain
|47%
| rowspan="4" |Not reported
| rowspan="4" |±3.3%
|-
|Barack Obama
|38%
|John McCain
|43%
|-
|John Edwards
|43%
|John McCain
|41%
|-
|Hillary Clinton
|47%
|Mitt Romney
|37%
|-
| rowspan="2" |NPR/Public Opinion Strategies/Greenberg Quinlan Rosner
| rowspan="2" |Dec 7, 9–10, 2006
|Hillary Clinton
|41%
|John McCain
|48%
| rowspan="2" |800 LV
| rowspan="2" |±3.46%
|-
|Barack Obama
|43%
|Mitt Romney
|27%
|-
|rowspan=6|Newsweek/Princeton Survey Research Associates International
|rowspan=6|Dec 6–7, 2006
|Hillary Clinton
|50%
|John McCain
|43%
| rowspan="6" |1,000 A
| rowspan="6" |Not reported
|-
|Hillary Clinton
|48%
|Rudy Giuliani
|47%
|-
|Hillary Clinton
|58%
|Mitt Romney
|32%
|-
|Barack Obama
|43%
|John McCain
|45%
|-
|Barack Obama
|44%
|Rudy Giuliani
|47%
|-
|Barack Obama
|55%
|Mitt Romney
|25%
|-
|rowspan=4|Fox News/Opinion Dynamics Corporation
|rowspan=4|Dec 5–6, 2006
|Barack Obama
|35%
|Rudy Giuliani
|46%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|39%
|Rudy Giuliani
|48%
|-
|Barack Obama
|30%
|John McCain
|49%
|-
|Hillary Clinton
|40%
|John McCain
|48%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Dec 4–5, 2006
|Barack Obama
|47%
|Mitt Romney
|38%
| rowspan="2" |1,000 LV
| rowspan="2" |±3%
|-
|John Edwards
|50%
|Mitt Romney
|37%
|-
| rowspan="3" |WNBC/Marist College
| rowspan="3" |Nov 27 – Dec 3, 2006
|Hillary Clinton
|43%
|Rudy Giuliani
|49%
| rowspan="3" |967 RV
| rowspan="3" |±3.5%
|-
|Hillary Clinton
|43%
|John McCain
|49%
|-
|Hillary Clinton
|47%
|Condoleezza Rice
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 28–29, 2006
|Barack Obama
|48%
|Newt Gingrich
|38%
| rowspan="2" |1,000 LV
| rowspan="2" |±3%
|-
|Hillary Clinton
|50%
|Newt Gingrich
|41%
|-
| rowspan="4" |Rasmussen Reports/Pulse Opinion Research
| rowspan="4" |Nov 13–14, 2006
|John Edwards
|43%
|John McCain
|47%
| rowspan="4" |1,000 LV
| rowspan="4" |±3%
|-
|John Edwards
|41%
|Rudy Giuliani
|50%
|-
|John Edwards
|50%
|Mike Huckabee
|33%
|-
|John Edwards
|51%
|Mitt Romney
|34%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 10–11, 2006
|Tom Vilsack
|32%
|John McCain
|49%
| rowspan="2" |1,000 LV
| rowspan="2" |±3%
|-
|Tom Vilsack
|39%
|Mitt Romney
|35%
|-
| rowspan="3" |Diageo/The Hotline/Financial Dynamics
| rowspan="3" |Nov 8–12, 2006
|Hillary Clinton
|40%
|John McCain
|45%
| rowspan="3" |1,005 RV
| rowspan="3" |±3.1%
|-
|John Edwards
|35%
|John McCain
|42%
|-
|Barack Obama
|35%
|John McCain
|39%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Nov 8–9, 2006
|Al Gore
|41%
|John McCain
|48%
| rowspan="2" |1,000 LV
| rowspan="2" |±3%
|-
|Al Gore
|44%
|Rudy Giuliani
|47%
|-
| rowspan="2" |McLaughlin & Associates
| rowspan="2" |Nov 7, 2006
|Hillary Clinton
|35%
|John McCain
|51%
| rowspan="2" |1,000 LV
| rowspan="2" |±3.1%
|-
|Hillary Clinton
|37%
|Rudy Giuliani
|51%
|-
| rowspan="6" |Rasmussen Reports/Pulse Opinion Research
| rowspan="6" |Nov 6–7, 2006
|Barack Obama
|39%
|John McCain
|47%
| rowspan="6" |1,000 LV
| rowspan="6" |±3%
|-
|Barack Obama
|39%
|Rudy Giuliani
|48%
|-
|Barack Obama
|48%
|Mitt Romney
|33%
|-
|Barack Obama
|50%
|Mike Huckabee
|31%
|-
|Hillary Clinton
|43%
|John McCain
|48%
|-
|Hillary Clinton
|46%
|Rudy Giuliani
|46%
|-
|rowspan=6|CNN/Opinion Research Corporation
| rowspan="3" |Oct 24–25, 2006
|Clinton/Obama
|40%
|McCain/Giuliani
|48%
| rowspan="3" |900 LV
| rowspan="3" |±3%
|-
|Barack Obama
|38%
|John McCain
|41%
|-
|Hillary Clinton
|39%
|John McCain
|45%
|-
|rowspan=4|CNN/Opinion Research Corporation
| rowspan="3" |Sep 18–20, 2006
|Hillary Clinton
|43%
|John McCain
|48%
| rowspan="3" |1,018 RV
| rowspan="3" |±3%
|-
|Hillary Clinton
|42%
|Rudy Giuliani
|49%
|-
|Hillary Clinton
|49%
|Condoleezza Rice
|43%
|-
|rowspan=4|Fox News/Opinion Dynamics Corporation
|rowspan=4|Aug 29–30, 2006
|Hillary Clinton
|39%
|John McCain
|47%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|42%
|Rudy Giuliani
|46%
|-
|Al Gore
|40%
|John McCain
|47%
|-
|Al Gore
|42%
|Rudy Giuliani
|46%
|-
|Diageo/The Hotline/Financial Dynamics
|Jul 20–23, 2006
|Hillary Clinton
|37%
|John McCain
|49%
|800 RV
|±3.5%
|-
| rowspan="3" |Time/Schulman, Ronca, & Bucuvalas Inc. (SRBI)
| rowspan="3" |Jul 13–17, 2006
|Hillary Clinton
|47%
|John McCain
|49%
| rowspan="3" |902 RV
| rowspan="3" |Not reported
|-
|John Kerry
|42%
|John McCain
|52%
|-
|Al Gore
|43%
|John McCain
|52%
|-
| rowspan="2" |Diageo/The Hotline/Financial Dynamics
| rowspan="2" |Jun 21–25, 2006
|Hillary Clinton
|40%
|John McCain
|50%
| rowspan="2" |800 RV
| rowspan="2" |±3.5%
|-
|John Edwards
|36%
|John McCain
|49%
|-
|Cook Political Report/RT Strategies
|Jun 1–4, 2006
|Hillary Clinton
|40%
|John McCain
|47%
|874 RV
|Not reported
|-
| rowspan="2" |Diageo/The Hotline/Financial Dynamics
| rowspan="2" |May 18–21, 2006
|Hillary Clinton
|38%
|John McCain
|49%
| rowspan="2" |801 RV
| rowspan="2" |±3.5%
|-
|Al Gore
|33%
|John McCain
|51%
|-
|rowspan=6|Fox News/Opinion Dynamics Corporation
|rowspan=6|May 16–18, 2006
|Hillary Clinton
|51%
|Jeb Bush
|35%
| rowspan="6" |900 RV
| rowspan="6" |±3%
|-
|Hillary Clinton
|42%
|John McCain
|46%
|-
|Hillary Clinton
|40%
|Rudy Giuliani
|49%
|-
|Al Gore
|50%
|Jeb Bush
|33%
|-
|Al Gore
|36%
|John McCain
|48%
|-
|Al Gore
|37%
|Rudy Giuliani
|50%
|-
|NBC News/Wall Street Journal
|Apr 21–24, 2006
|Hillary Clinton
|37%
|John McCain
|46%
|1,005 A
|±3.1%
|-
|Cook Political Report/RT Strategies
|Apr 6–9, 2006
|Hillary Clinton
|37%
|John McCain
|46%
|Not reported
|±3.1%
|-
|rowspan=6|Fox News/Opinion Dynamics Corporation
|rowspan=6|Mar 14–15, 2006
|Hillary Clinton
|39%
|John McCain
|50%
| rowspan="6" |900 RV
| rowspan="6" |±3%
|-
|John Kerry
|33%
|John McCain
|53%
|-
|Al Gore
|34%
|John McCain
|52%
|-
|Hillary Clinton
|39%
|Rudy Giuliani
|51%
|-
|Hillary Clinton
|50%
|Dick Cheney
|37%
|-
|Al Gore
|48%
|Dick Cheney
|36%
|-
|Cook Political Report/RT Strategies
|Feb 23–26, 2006
|Hillary Clinton
|36%
|John McCain
|48%
|Not reported
|Not reported
|-
|Diageo/The Hotline/Financial Dynamics
|Feb 16–19, 2006
|Hillary Clinton
|40%
|John McCain
|50%
|807 RV
|±3.5%
|-
|rowspan=11|WNBC/Marist College
|rowspan=11|Feb 13–15, 2006
|John Kerry
|45%
|Rudy Giuliani
|48%
| rowspan="11" |931 RV
| rowspan="11" |±3.5%
|-
|John Kerry
|37%
|John McCain
|54%
|-
|John Kerry
|44%
|Condoleezza Rice
|50%
|-
|John Edwards
|44%
|Rudy Giuliani
|47%
|-
|John Edwards
|41%
|John McCain
|47%
|-
|John Edwards
|51%
|Condoleezza Rice
|42%
|-
|Al Gore
|42%
|Rudy Giuliani
|53%
|-
|Al Gore
|38%
|John McCain
|55%
|-
|Hillary Clinton
|47%
|Rudy Giuliani
|48%
|-
|Hillary Clinton
|42%
|John McCain
|52%
|-
|Hillary Clinton
|49%
|Condoleezza Rice
|44%
|-
|rowspan=4|Fox News/Opinion Dynamics Corporation
|rowspan=4|Feb 7–8, 2006
|Hillary Clinton
|38%
|John McCain
|51%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|John Kerry
|33%
|John McCain
|53%
|-
|Hillary Clinton
|40%
|Rudy Giuliani
|51%
|-
|John Kerry
|34%
|Rudy Giuliani
|53%
|-
|Diageo/The Hotline/Financial Dynamics
|Jan 12–15, 2006
|Hillary Clinton
|36%
|John McCain
|52%
|806 RV
|±3.5%
|-
|rowspan=6|Zogby Interactive
|rowspan=6|Dec 6–8, 2005
|Hillary Clinton
|37%
|John McCain
|52%
| rowspan="6" |1,013 LV
| rowspan="6" |±3.1%
|-
|Hillary Clinton
|46%
|Condoleezza Rice
|47%
|-
|John Kerry
|34%
|John McCain
|55%
|-
|John Kerry
|45%
|Condoleezza Rice
|48%
|-
|Mark Warner
|23%
|John McCain
|58%
|-
|Mark Warner
|32%
|Condoleezza Rice
|50%
|-
|Quinnipiac University
|Nov 28 – Dec 4, 2005
|Hillary Clinton
|40%
|John McCain
|44%
|1,230 RV
|±2.8%
|-
|Diageo/The Hotline/Financial Dynamics
|Nov 11–15, 2005
|Hillary Clinton
|39%
|John McCain
|52%
|700 RV
|±3.7%
|-
| rowspan="4" |NBC News/Wall Street Journal
| rowspan="4" |Nov 4–7, 2005
|Hillary Clinton
|42%
|John McCain
|44%
| rowspan="4" |Not reported
| rowspan="4" |Not reported
|-
|Hillary Clinton
|50%
|Bill Frist
|37%
|-
|John Kerry
|35%
|John McCain
|53%
|-
|John Kerry
|45%
|Bill Frist
|35%
|-
| rowspan="9" |WNBC/Marist College
| rowspan="9" |Oct 12–13, 17, 2005
|Hillary Clinton
|43%
|Rudy Giuliani
|50%
| rowspan="9" |827 RV
| rowspan="9" |±3.5%
|-
|Hillary Clinton
|41%
|John McCain
|50%
|-
|Hillary Clinton
|50%
|Condoleezza Rice
|41%
|-
|John Kerry
|40%
|Rudy Giuliani
|53%
|-
|John Kerry
|40%
|John McCain
|51%
|-
|John Kerry
|46%
|Condoleezza Rice
|45%
|-
|John Edwards
|43%
|Rudy Giuliani
|48%
|-
|John Edwards
|41%
|John McCain
|49%
|-
|John Edwards
|49%
|Condoleezza Rice
|42%
|-
| rowspan="8" |Fox News/Opinion Dynamics Corporation
| rowspan="8" |Sep 27–28, 2005
|Hillary Clinton
|39%
|Rudy Giuliani
|50%
| rowspan="8" |900 RV
| rowspan="8" |±3%
|-
|Hillary Clinton
|38%
|John McCain
|49%
|-
|Hillary Clinton
|46%
|Condoleezza Rice
|43%
|-
|John Kerry
|36%
|Rudy Giuliani
|52%
|-
|John Kerry
|35%
|John McCain
|53%
|-
|John Kerry
|43%
|Condoleezza Rice
|45%
|-
|Al Gore
|29%
|John McCain
|57%
|-
|Al Gore
|32%
|Rudy Giuliani
|55%
|-
| rowspan="2" |Gallup
| rowspan="2" |July 25–28, 2005
|John Kerry
|41%
|John McCain
|54%
| rowspan="2" |922 RV
| rowspan="2" |±4%
|-
|John Kerry
|41%
|Rudy Giuliani
|54%
|-
| rowspan="2" |Zogby Interactive
| rowspan="2" |Apr 25–26, 2005
|Hillary Clinton
|38%
|John McCain
|45%
| rowspan="2" |1,000 A
| rowspan="2" |±3%
|-
|Hillary Clinton
|40%
|Rudy Giuliani
|42%
|-
|rowspan=7|Marist College
|rowspan=7|Apr 18–21, 2005
|Hillary Clinton
|42%
|John McCain
|50%
| rowspan="7" |838 RV
| rowspan="7" |±3.5%
|-
|Hillary Clinton
|46%
|Rudy Giuliani
|47%
|-
|John Kerry
|41%
|John McCain
|51%
|-
|Hillary Clinton
|55%
|Jeb Bush
|38%
|-
|John Kerry
|46%
|Rudy Giuliani
|48%
|-
|John Edwards
|43%
|John McCain
|46%
|-
|John Edwards
|48%
|Rudy Giuliani
|45%
|-
| rowspan="2" |Moore Information
| rowspan="2" |Mar 21–23, 2005
|Hillary Clinton
|38%
|John McCain
|49%
| rowspan="2" |800 RV
| rowspan="2" |±3%
|-
|Hillary Clinton
|41%
|Rudy Giuliani
|47%
|-
|Democracy Corps/Greenberg Quinlan Rosner (D)
|Mar 15–21, 2005
|Hillary Clinton
|50%
|Jeb Bush
|47%
|501 LV
|Not reported
|-
| rowspan="2" |Quinnipiac University
| rowspan="2" |Mar 2–7, 2005
|Hillary Clinton
|43%
|Rudy Giuliani
|44%
| rowspan="2" |1,534 RV
| rowspan="2" |±2.5%
|-
|Hillary Clinton
|41%
|John McCain
|43%
|-
|The Hotline/Westhill Partners
|Feb 24–27, 2005
|Bill Richardson
|36%
|Arnold Schwarzenegger
|27%
|800 RV
|±3.5%
|-
|rowspan=7|Marist College
|rowspan=7|Feb 14–16, 2005
|Hillary Clinton
|42%
|John McCain
|54%
| rowspan="7" |851 RV
| rowspan="7" |±3.5%
|-
|John Kerry
|37%
|John McCain
|55%
|-
|Hillary Clinton
|47%
|Rudy Giuliani
|49%
|-
|John Kerry
|44%
|Rudy Giuliani
|50%
|-
|John Edwards
|39%
|John McCain
|51%
|-
|John Edwards
|43%
|Rudy Giuliani
|49%
|-
|Hillary Clinton
|51%
|Condoleezza Rice
|43%
|-
| rowspan="2" |Rasmussen Reports/Pulse Opinion Research
| rowspan="2" |Jan 29–30, 2005
|Hillary Clinton
|47%
|Condoleezza Rice
|40%
| rowspan="2" |1,000 A
| rowspan="2" |±3%
|-
|John Kerry
|43%
|Condoleezza Rice
|45%
|-
|The Hotline/Westhill Partners
|Jan 25–27, 2005
|Hillary Clinton
|46%
|Jeb Bush
|37%
|800 RV
|±3.5%
|-
|rowspan=4|Fox News/Opinion Dynamics Corporation
|rowspan=4|Dec 14–15, 2004
|John Kerry
|45%
|Jeb Bush
|37%
| rowspan="4" |900 RV
| rowspan="4" |±3%
|-
|Hillary Clinton
|46%
|Jeb Bush
|35%
|-
|Hillary Clinton
|41%
|George Pataki
|35%
|-
|Hillary Clinton
|40%
|Bill Frist
|33%
|-
|Quinnipiac University
|Dec 7–12, 2004
|Hillary Clinton
|43%
|Rudy Giuliani
|45%
|1,529 RV
|±2.5%
|-
| rowspan="5" |Fox News/Opinion Dynamics Corporation
| rowspan="5" |Nov 16–17, 2004
|Hillary Clinton
|38%
|Rudy Giuliani
|49%
| rowspan="5" |900 RV
| rowspan="5" |±3%
|-
|Hillary Clinton
|37%
|John McCain
|53%
|-
|John Kerry
|41%
|Rudy Giuliani
|49%
|-
|John Kerry
|38%
|John McCain
|50%
|-
|John Edwards
|38%
|Rudy Giuliani
|50%
|}
Three-way contest
See
{|class="wikitable sortable"
!width="25%"|Poll Source
!width="10%"|Date
!width="15%"|Democrat(s)
!width="5%"|%
!width="15%"|Republican(s)
!width="5%"|%
!width="15%"|Independent(s)
!width="5%"|%
|-
|Fox News/Opinion Dynamics
|January 30–31, 2008
|Hillary Clinton
|41%
|John McCain
|41%
|Michael Bloomberg
|6%
|-
|Fox News/Opinion Dynamics
|Nov 9–11, 2007
|Hillary Clinton
|43%
|Rudy Giuliani
|38%
|Michael Bloomberg
|11%
|-
|Rasmussen Reports Poll
|Oct 19–21, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|35%
|Stephen Colbert
|13%
|-
|Rasmussen Reports Poll
|Sep 25–26, 2007
|Hillary Clinton
|42%
|Rudy Giuliani
|32%
|Mike Bloomberg
|7%
|-
|NBC News/Wall Street Journal Poll
|July 27–30, 2007
|Hillary Clinton
|42%
|Rudy Giuliani
|34%
|Michael Bloomberg
|11%
|-
|Zogby America Poll
|July 12–14, 2007
|Hillary Clinton
|41%
|John McCain
|36%
|Mike Bloomberg
|11%
|-
|Zogby America Poll
|July 10–12, 2007
|Hillary Clinton
|40%
|Rudy Giuliani
|33%
|Michael Bloomberg
|10%
|-
|USA Today/Gallup Poll
|July 6–8, 2007
|Hillary Clinton
|45%
|Rudy Giuliani
|39%
|Michael Bloomberg
|12%
|-
|FOX News/Opinion Dynamics Poll
|June 26–27, 2007
|Hillary Clinton
|39%
|Rudy Giuliani
|37%
|Michael Bloomberg
|7%
|-
|CNN/Opinion Research Corporation Poll
|June 22–24, 2007
|Hillary Clinton
|41%
|Rudy Giuliani
|38%
|Michael Bloomberg
|17%
|-
|CNN/Opinion Research Corporation Poll
|June 20–21, 2007
|Hillary Clinton
|46%
|Rudy Giuliani
|37%
|Michael Bloomberg
|11%
|-
|Newsweek Poll
|June 3, 2007
|Hillary Clinton
|38%
|Rudy Giuliani
|29%
|Michael Bloomberg
|21%
|-
|Rasmussen Reports (New Jersey) Poll
|Feb 13–14, 2007
|Hillary Clinton
|40%
|Rudy Giuliani
|46%
|Ralph Nader
|5%
|-
|Cook Political Report/RT Strategies Poll
|Dec 14–17, 2006
|Hillary Clinton
|37%
|Rudy Giuliani
|28%
|John McCain
|20%
|-
|NBC News/Wall Street Journal Poll
|Dec 8–11, 2006
|Hillary Clinton
|40%
|John McCain
|39%
|Michael Bloomberg
|10%
|-
|WNBC/Marist Poll
|Nov 27 – Dec 3, 2006
|Hillary Clinton
|41%
|Rudy Giuliani
|45%
|Donald Trump
|7%
|-
|WNBC/Marist Poll
|Nov 11–15, 2005
|Hillary Clinton
|34%
|Jeb Bush
|18%
|John McCain
|40%
|-
|Diageo/Hotline Poll
|Feb 12–15, 2007
|Hillary Clinton
|25%
|30%
|43%
|
|2%
|-
|WNBC/Marist Poll
|Oct 3–4, 2006
|Rudy Giuliani
|17%
|55%
|19%
|
|18%
|-
|Time Poll
|Jun 1–6, 2006
|Hillary Rodham Clinton
|22%
|28%
|47%
|
|3%
|-
|CNN Poll
|May 11–15, 2006
|Hillary Clinton
|19%
|38%
|42%
|
|1%
|-
|ABC News/Washington Post Poll
|Jan 20–22, 2006
|Hillary Rodham Clinton
|16%
|32%
|51%
|
|1%
|-
|Diageo/Hotline Poll
|Nov 11–15, 2005
|John McCain
|23%
|46%
|15%
|
|15%
|-
|CNN/USA Today/Gallup Poll
|Feb 9–11, 2007
|88%
|11%
|-
|Times Union/Siena College Poll
|Feb 6–9, 2007
|81%
|12%
|-
|Newsweek Poll
|Dec 6–7, 2006
|86%
|8%
|-
|CBS News/New York Times Poll
|Jan 20–25, 2006
|92%
|5%
|-
|Rasmussen Reports Poll
|Apr 6–7, 2005
|72%
|17%
|}
Would you be willing to vote for an African American presidential candidate in 2008?
{|class="wikitable sortable"
!width="25%"|Poll Source
!width="15%"|Date
!width="10%"|Yes
!width="10%"|No
|-
|USA Today/Gallup Poll
|Jan 17–18, 2007
|79%
|12%
|-
|Newsweek Poll
|Nov 20, 2006
|38%
|43%
|}
Would you be willing to vote for a Roman Catholic presidential candidate in 2008?
{|class="wikitable sortable"
!width="25%"|Poll Source
!width="15%"|Date
!width="10%"|Yes
!width="10%"|No
|-
|USA Today/Gallup Poll