The 1922 United States Senate elections were elections that occurred in the middle of Republican President Warren G. Harding's term. The 32 seats of Class 1 were contested in regular elections, and special elections were held to fill vacancies. With the Republicans divided between conservative and progressive factions, the Democrats gained six net seats from the Republicans while the Farmer–Labor party gained one. The Republicans retained their Senate majority.

Mid-term vacancies would reduce the Republican majority by a further two seats, with the Democrats and the Farmer Labors picking up another seat each, reducing Republicans to a 51-43-2 majority.

Gains, losses, and holds

Retirements

One Republican and two Democrats retired instead of seeking re-election. One Republican retired instead of seeking election to finish the unexpired term and one Democrat retired instead of seeking election to finish the unexpired term.

{| class="wikitable sortable plainrowheaders"

|-

! scope="col" |State

! scope="col" |Senator

! scope="col" |Replaced by

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! Georgia

| |

| |

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! Iowa

| |

| |

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! Mississippi

| |

| |

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! Montana

| |

| |

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! Vermont

| |

| |

|}

Defeats

Nine Republicans and three Democrats sought re-election but lost in the primary or general election. One Republican sought election to finish the unexpired term and sought election to a full term but lost in both the special election and the regular election.

{| class="wikitable sortable plainrowheaders"

|-

! scope="col" |State

! scope="col" |Senator

! scope="col" |Replaced by

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! Delaware

| |

| |

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! Indiana

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! Maryland

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! Michigan

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! Minnesota

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! Nebraska

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! New Jersey

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! New York

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! North Dakota

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! Ohio

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! Texas

| |

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! Washington

| |

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! West Virginia

| |

| |

|}

Post-elections changes

{| class="wikitable sortable plainrowheaders"

|-

! scope="col" |State

! scope="col" |Senator

! scope="col" |Replaced by

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! Colorado

| |

| |

|-

! Illinois

| |

| |

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! Minnesota

| |

| |

|}

Change in composition

Before the elections

At the beginning of 1922.

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| colspan=2 |  

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| colspan=9 align=right | Majority →

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After the elections

{| class="wikitable" style="text-align:center"

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{|

|- valign=top

! Key

|

{| class=wikitable

|-

| align=center width=35px | D

| Democratic

|-

| align=center width=35px | FL

| Farmer–Labor

|-

| align=center width=35px | R

| Republican

|}

|}

Race summaries

Special elections during the 67th Congress

In these special elections, the winners were seated during 1922; ordered by election date.

{| class=wikitable

|- valign=bottom

! rowspan=2 | State

! colspan=3 | Incumbent

! rowspan=2 | Results

! rowspan=2 | Candidates

|-

! Senator

! Party

! Electoral history

|-

! Delaware<br />(Class 1)

| T. Coleman du Pont

| | Republican

| 1921

| | Interim appointee lost election.<br />New senator <!--elected-->elected November 7, 1922.<br />Democratic gain.<br />Winner also elected to the next term; see below.

| nowrap |

|-

! Georgia<br />(Class 3)

| Rebecca Latimer Felton

| | Democratic

| 1922

| | Interim appointee retired.<br />New senator <!--elected-->elected November 7, 1922.<br />Democratic hold.

| nowrap |

|-

! Iowa<br />(Class 2)

| Charles A. Rawson

| | Republican

| 1922

| | Interim appointee retired.<br />New senator <!--elected-->elected November 7, 1922.<br />Republican hold.

| nowrap |

|-

! Pennsylvania<br />(Class 1)

| David A. Reed

| | Republican

| 1922

| Interim appointee elected November 7, 1922.<br />Winner also elected to the next term; see below.

| nowrap |

|-

! Pennsylvania<br />(Class 3)

| George W. Pepper

| | Republican

| 1922

| Interim appointee elected November 7, 1922.

| nowrap |

|}

Elections leading to the 68th Congress

In these general elections, the winners were elected for the term beginning March 4, 1923; ordered by state.

All of the elections involved the Class 1 seats.

{| class=wikitable

|- valign=bottom

! rowspan=2 | State

! colspan=3 | Incumbent

! rowspan=2 | Results

! rowspan=2 | Candidates

|-

! Senator

! Party

! Electoral history

|-

! Arizona

| Henry F. Ashurst

| | Democratic

| 1912 <br />1916

| Incumbent re-elected.

| nowrap |

|-

! California

| Hiram Johnson

| | Republican

| 1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Connecticut

| George P. McLean

| | Republican

| 1911<br />1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Delaware

| T. Coleman du Pont

| | Republican

| 1921

| | Interim appointee <!--lost election-->lost election.<br />Democratic gain.

| nowrap |

|-

! Florida

| Park Trammell

| | Democratic

| 1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Indiana

| Harry S. New

| | Republican

| 1916

| | Incumbent <!--lost renomination-->lost renomination.<br />Democratic gain.

| nowrap |

|-

! Maine

| Frederick Hale

| | Republican

| 1916

| Incumbent <!--re-elected-->re-elected September 11, 1922.

| nowrap |

|-

! Maryland

| Joseph I. France

| | Republican

| 1916

| | Incumbent <!--lost re-election-->lost re-election.<br />Democratic gain.

| nowrap |

|-

! Massachusetts

| Henry Cabot Lodge

| | Republican

| 1893<br />1899<br />1905<br />1911<br />1916

| Incumbent re-elected.

| nowrap |

|-

! Michigan

| Charles E. Townsend

| | Republican

| 1911<br />1916

| | Incumbent <!--lost re-election-->lost re-election.<br />Democratic gain.

| nowrap |

|-

! Minnesota

| Frank B. Kellogg

| | Republican

| 1916

| | Incumbent lost re-election.<br />Farmer–Labor gain.

| nowrap |

|-

! Mississippi

| John S. Williams

| | Democratic

| 1908 <br />1916

| | Incumbent <!--retired-->retired.<br />Democratic hold.

| nowrap |

|-

! Missouri

| James A. Reed

| | Democratic

| 1911<br />1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Montana

| Henry L. Myers

| | Democratic

| 1911<br />1916

| | Incumbent <!--retired-->retired.<br />Democratic hold.

| nowrap |

|-

! Nebraska

| Gilbert Hitchcock

| | Democratic

| 1911<br />1916

| | Incumbent <!--lost re-election-->lost re-election.<br />Republican gain.

| nowrap |

|-

! Nevada

| Key Pittman

| | Democratic

| 1913 <br />1916

| Incumbent re-elected.

| nowrap |

|-

! New Jersey

| Joseph S. Frelinghuysen

| | Republican

| 1916

| | Incumbent <!--lost re-election-->lost re-election.<br />Democratic gain.

| nowrap |

|-

! New Mexico

| Andrieus A. Jones

| | Democratic

| 1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! New York

| William M. Calder

| | Republican

| 1916

| | Incumbent lost re-election.<br />Democratic gain.

| nowrap |

|-

! North Dakota

| Porter J. McCumber

| | Republican

| 1899<br />1905<br />1911<br />1916

| | Incumbent lost renomination.<br />Republican hold.

| nowrap |

|-

! Ohio

| Atlee Pomerene

| | Democratic

| 1911<br />1916

| | Incumbent lost re-election.<br />Republican gain.

| nowrap |

|-

! Pennsylvania

| David A. Reed

| | Republican

| 1922

| Interim appointee elected.<br />Winner was also elected to finish the current term; see above.

| nowrap |

|-

! Rhode Island

| Peter G. Gerry

| | Democratic

| 1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Tennessee

| Kenneth McKellar

| | Democratic

| 1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Texas

| Charles A. Culberson

| | Democratic

| 1899<br />1905<br />1911<br />1916

| | Incumbent <!--lost renomination-->lost renomination.<br />Democratic hold.

| nowrap |

|-

! Utah

| William H. King

| | Democratic

| 1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Vermont

| Carroll S. Page

| | Republican

| 1908 <br />1910<br />1916

| | Incumbent retired.<br />Republican hold.

| nowrap |

|-

! Virginia

| Claude A. Swanson

| | Democratic

| 1910 <br />1911 <br />1912 <br />1916

| Incumbent re-elected.

| nowrap |

|-

! Washington

| Miles Poindexter

| | Republican

| 1910<br />1916

| | Incumbent <!--lost re-election-->lost re-election.<br />Democratic gain.

| nowrap |

|-

! West Virginia

| Howard Sutherland

| | Republican

| 1916

| | Incumbent <!--lost re-election-->lost re-election.<br />Democratic gain.

| nowrap |

|-

! Wisconsin

| Robert M. La Follette

| | Republican

| 1905<br />1911<br />1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|-

! Wyoming

| John B. Kendrick

| | Democratic

| 1916

| Incumbent <!--re-elected-->re-elected.

| nowrap |

|}

Closest races

Fourteen races had a margin of victory under 10%:

{| class="wikitable sortable"

! State

! Party of winner

! Margin

|-

! Delaware (special)

| data-sort-value=-0.5 | Democratic (flip)

| 0.1%

|-

! Delaware (regular)

| data-sort-value=-0.5 | Democratic (flip)

| 0.43%

|-

! Utah

| data-sort-value=-0.5 | Democratic

| 0.47%

|-

! Massachusetts

| data-sort-value=-0.5 | Republican

| 0.8%

|-

! Washington

| data-sort-value=-0.5 | Democratic (flip)

| 1.2%

|-

! Michigan

| data-sort-value=-0.5 | Democratic (flip)

| 2.2%

|-

! Indiana

| data-sort-value=-0.5 | Democratic (flip)

| 3.1%

|-

! Ohio

| data-sort-value=-0.5 | Republican (flip)

| 3.2%

|-

! West Virginia

| data-sort-value=-0.5 | Democratic (flip)

| 3.6%

|-

! North Dakota

| data-sort-value=-0.5 | Republican

| 4.56%

|-

! Missouri

| data-sort-value=-0.5 | Democratic

| 4.6%

|-

! Maryland

| data-sort-value=-0.5 | Democratic (flip)

| 7.0%

|-

! Connecticut

| data-sort-value=-0.5 | Republican

| 6.8%

|-

! Rhode Island

| data-sort-value=-0.5 | Democratic

| 8.8%

|}

The tipping point state is Pennsylvania with a margin of 25.5%.

Arizona

California

Nevada

<!---->

Ohio

<!---->

Incumbent Democratic U.S. Senator Charles Culberson ran for re-election to a fifth term, but he lost the Democratic primary. Railroads Commissioner Earle Bradford Mayfield defeated former Governor Pa Ferguson in the primary runoff. Mayfield won the runoff, but because of his support of the resurgent Ku Klux Klan, anti-Klan activists in the Democratic Party including George Peddy attempted to have him stripped of the nomination. After this failed, Peddy ran as the candidate of the "Independent Democrats." The Texas Republican Party also backed Peddy, but after a lengthy court battle, they were unable to have him included on the general election ballot as their official nominee. Peddy instead ran as a write-in candidate, but he lost the general election to Mayfield.