| Election Name: | 1940 United States Senate elections |
| Country: | United States |
| Flag Year: | 1912 |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1938 United States Senate elections |
| Previous Year: | 1938 |
| Next Election: | 1942 United States Senate elections |
| Next Year: | 1942 |
| Majority Seats: | 49 |
| Election Date: | November 5, 1940 |
| 1Blank: | Seats up |
| 2Blank: | Races won |
| Party1: | Democratic Party (US) |
| Image1: | AlbenBarkley.jpg |
| Leader Since1: | July 22, 1937 |
| Seats Before1: | 69 |
| Seats After1: | 66 |
| Seat Change1: | 3 |
| Popular Vote1: | 19,715,831 |
| Percentage1: | 47.5% |
| 1Data1: | 25 |
| 2Data1: | 22 |
| Party2: | Republican Party (US) |
| Leader2: | Warren Austin (acting) |
| Leader Since2: | January 3, 1940 |
| Seats Before2: | 24 |
| Seats After2: | 28 |
| Seat Change2: | 4 |
| Popular Vote2: | 19,831,926 |
| Percentage2: | 47.8% |
| 1Data2: | 9 |
| 2Data2: | 13 |
| Party4: | Farmer–Labor Party |
| Seats Before4: | 1 |
| Seats4: | 0 |
| Seat Change4: | 1 |
| Popular Vote4: | 310,875 |
| Percentage4: | 2.57% |
| 1Data4: | 1 |
| 2Data4: | 0 |
| Party5: | Progressive Party (Wisconsin) |
| Seats Before5: | 1 |
| Seats5: | 1 |
| Popular Vote5: | 605,609 |
| Percentage5: | 1.5% |
| 1Data5: | 1 |
| 2Data5: | 1 |
| Party7: | Independent |
| Seats Before7: | 1 |
| Seats After7: | 1 |
| 1Data7: | 0 |
| 2Data7: | 0 |
| Map Size: | 320px |
| Before Party: | Democratic Party (United States) |
| After Party: | Democratic Party (United States) |
The 1940 United States Senate elections coincided with the election of Franklin D. Roosevelt to his third term as president. The 32 seats of Class 1 were contested in regular elections, and special elections were held to fill vacancies.
Although Roosevelt was re-elected, support for his administration had dropped somewhat after eight years, and the Republican opposition gained three seats from the Democrats. However, the New Deal Democrats regained firm control of both the House and Senate because Progressives dominated the election.[1] The Minnesota Farmer–Labor Party also disappeared from the Senate, as Henrik Shipstead joined the Republican party and Ernest Lundeen had died during the preceding term. Senator Harry S. Truman of Missouri was elected to his final term in the Senate in 1940. Truman resigned in 1945 to serve as President Roosevelt's third Vice President.
Republicans later gained an additional seat through an appointment in Colorado.
One Republican and two Democrats retired instead of seeking re-election. One Republican retired instead of seeking election to finish the unexpired term.
Five Democrats and two Republicans sought re-election but lost in the primary or general election. One Democrat sought election to finish the unexpired term but lost in the general election.
One Farmer-Labor senator was re-elected as a Republican.
| D | D | D | D | D | D | D | D | ||||||||||||
| width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D |
| D | D | D | D | D | D | D | D | D | D | ||||||||||
| D | D | D | D | D | D | D | D | D | D | ||||||||||
| D | D | D | D | D | D | D | D | D | D | ||||||||||
| Majority → | D | ||||||||||||||||||
| D | D | D | D | D | D | D | D | D | |||||||||||
| D | D | D | D | D | D | D | D | D | D | ||||||||||
| R | R | R | R | R | R | FL | P | I | D | ||||||||||
| R | R | R | R | R | R | R | R | R | R | ||||||||||
| R | R | R | R | R | R | R | R | ||||||||||||
| D | D | D | D | D | D | D | D | ||||||||||||
| width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D | width=10% | D |
| D | D | D | D | D | D | D | D | D | D | ||||||||||
| D | D | D | D | D | D | D | D | D | D | ||||||||||
| D | D | D | D | D | D | D | D | D | D | ||||||||||
| Majority → | D | ||||||||||||||||||
| D | D | D | D | D | D | D | D | D | |||||||||||
| D | D | D | D | D | D | D | D | I | P | ||||||||||
| R | R | R | R | R | R | R | R | R | R | ||||||||||
| R | R | R | R | R | R | R | R | R | R | ||||||||||
| R | R | R | R | R | R | R | R | ||||||||||||
| Key |
|
|---|
In these special elections, the winner elected during 1940 and seated once qualified; ordered by election date.
| State | Incumbent | Results | Candidates | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Senator | Party | Electoral history | |||||||
| Idaho (Class 2) | John Thomas | Republican | 1928 1928 1932 1940 | Interim appointee elected November 5, 1940. | nowrap | ||||
| Illinois (Class 2) | James M. Slattery | Democratic | 1939 | Interim appointee lost election to finish term. New senator elected November 5, 1940. Republican gain. | nowrap | ||||
| Kentucky (Class 2) | Happy Chandler | Democratic | 1939 | Interim appointee elected November 5, 1940. | nowrap | ||||
| Vermont (Class 3) | Ernest W. Gibson Jr. | Republican | 1940 | Interim appointee retired. New senator elected November 5, 1940. Republican hold. | nowrap | ||||
In these regular elections, the winners were elected for the term beginning January 3, 1941; ordered by state.
All of the elections involved the Class 1 seats.
| State | Incumbent | Results | Candidates | |||||
|---|---|---|---|---|---|---|---|---|
| Senator | Party | Electoral history | ||||||
| Arizona | Henry F. Ashurst | Democratic | 1912 1916 1922 1928 1934 | Incumbent lost renomination. New senator elected. Democratic hold. | nowrap | |||
| California | Hiram Johnson | Republican | 1916 1922 1928 1934 | Incumbent re-elected. | nowrap | |||
| Connecticut | Francis T. Maloney | Democratic | 1934 | Incumbent re-elected. | nowrap | |||
| Delaware | John G. Townsend Jr. | Republican | 1928 1934 | Incumbent lost re-election. New senator elected. Democratic gain. | nowrap | |||
| Florida | Charles O. Andrews | Democratic | 1936 | Incumbent re-elected. | nowrap | |||
| Indiana | Sherman Minton | Democratic | 1934 | Incumbent lost re-election. New senator elected. Republican gain. | nowrap | |||
| Maine | Frederick Hale | Republican | 1916 1922 1928 1934 | Incumbent retired. New senator elected. Republican hold. | nowrap | |||
| Maryland | George L. P. Radcliffe | Democratic | 1934 | Incumbent re-elected. | nowrap | |||
| Massachusetts | David I. Walsh | Democratic | 1918 1924 1926 1928 1934 | Incumbent re-elected. | nowrap | |||
| Michigan | Arthur Vandenberg | Republican | 1928 1928 1928 1934 | Incumbent re-elected. | nowrap | |||
| Minnesota | Henrik Shipstead | Farmer–Labor | 1922 1928 1934 | Incumbent re-elected as a Republican. Republican gain. | nowrap | |||
| Mississippi | Theodore G. Bilbo | Democratic | 1934 | Incumbent re-elected. | nowrap | |||
| Missouri | Harry S. Truman | Democratic | 1934 | Incumbent re-elected. | nowrap | |||
| Montana | Burton K. Wheeler | Democratic | 1922 1928 1934 | Incumbent re-elected. | nowrap | |||
| Nebraska | Edward R. Burke | Democratic | 1934 | Incumbent lost renomination. New senator elected. Republican gain. | nowrap | |||
| Nevada | Key Pittman | Democratic | 1913 1916 1922 1928 1934 | Incumbent re-elected. Winner died November 10, 1940, and Berkeley L. Bunker (D) was appointed both to finish the term and to start the next term. | nowrap | |||
| New Jersey | W. Warren Barbour | Republican | 1931 1932 1936 1938 | Incumbent re-elected. | nowrap | |||
| New Mexico | Dennis Chávez | Democratic | 1935 1936 | Incumbent re-elected. | nowrap | |||
| New York | James M. Mead | Democratic | 1938 | Incumbent re-elected. | nowrap | |||
| North Dakota | Lynn Frazier | Republican/ Nonpartisan League | 1922 1928 1934 | Incumbent lost renomination. New senator elected. Republican hold. | nowrap | |||
| Ohio | Vic Donahey | Democratic | 1934 | Incumbent retired. New senator elected. Republican gain. | nowrap | |||
| Pennsylvania | Joseph F. Guffey | Democratic | 1934 | Incumbent re-elected. | nowrap | |||
| Rhode Island | Peter G. Gerry | Democratic | 1916 1922 1928 1934 | Incumbent re-elected. | nowrap | |||
| Tennessee | Kenneth McKellar | Democratic | 1916 1922 1928 1934 | Incumbent re-elected. | nowrap | |||
| Texas | Tom Connally | Democratic | 1928 1934 | Incumbent re-elected. | nowrap | |||
| Utah | William H. King | Democratic | 1916 1922 1928 1934 | Incumbent lost renomination. New senator elected. Democratic hold. | nowrap | |||
| Vermont | Warren Austin | Republican | 1931 1934 | Incumbent re-elected. | nowrap | |||
| Virginia | Harry F. Byrd | Democratic | 1933 1933 1934 | Incumbent re-elected. | nowrap | |||
| Washington | Lewis B. Schwellenbach | Democratic | 1934 | Incumbent retired. New senator elected. Democratic hold. Incumbent resigned December 16, 1940. Winner appointed to finish the term. | nowrap | |||
| West Virginia | Rush Holt Sr. | Democratic | 1934 | Incumbent lost renomination. New senator elected. Democratic hold. | nowrap | |||
| Wisconsin | Robert M. La Follette Jr. | Progressive | 1925 1928 1934 | Incumbent re-elected. | nowrap | |||
| Wyoming | Joseph C. O'Mahoney | Democratic | 1933 1934 | Incumbent re-elected. | nowrap | |||
Thirteen races had a margin of victory under 10%:
| State | Party of winner | Margin | ||
|---|---|---|---|---|
| Illinois | data-sort-value=-0.5 | Republican (flip) | 0.7% | |
| Indiana | data-sort-value=-0.5 | Republican (flip) | 1.4% | |
| Missouri | data-sort-value=-0.5 | Democratic | 2.5% | |
| North Dakota | data-sort-value=-0.5 | Republican | 3.0% | |
| Connecticut | data-sort-value=-0.5 | Democratic (flip) | 3.3% | |
| Wisconsin | data-sort-value=-0.5 | Progressive | 3.9% | |
| Pennsylvania | data-sort-value=-0.5 | Democratic | 4.4% | |
| Ohio | data-sort-value=-0.5 | Republican (flip) | 4.8% | |
| Michigan | data-sort-value=-0.5 | Republican | 5.7% | |
| Idaho (special) | data-sort-value=-0.5 | Republican | 5.9% | |
| New York | data-sort-value=-0.5 | Democratic | 6.6% | |
| Connecticut | data-sort-value=-0.5 | Democratic | 7.5% | |
| Washington | data-sort-value=-0.5 | Democratic | 8.4% |
There is no tipping point state.
| Election Name: | 1940 United States Senate election in Arizona |
| Country: | Arizona |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Arizona |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Arizona |
| Next Year: | 1946 |
| Election Date: | November 3, 1940 |
| Nominee1: | Ernest McFarland |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 101,495 |
| Percentage1: | 71.61% |
| Nominee2: | Irving A. Jennings Sr. |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 29,657 |
| Percentage2: | 27.98% |
| Map Size: | 210px |
| U.S. Senator | |
| Before Election: | Henry F. Ashurst |
| Before Party: | Democratic Party (United States) |
| After Election: | Ernest McFarland |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Arizona.
See also: List of United States senators from Arizona.
| Election Name: | 1940 United States Senate election in California |
| Country: | California |
| Flag Image: | Flag of California (1924–1953).pngborder |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in California |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate special election in California |
| Next Year: | 1946 (special) |
| Election Date: | November 5, 1940 |
| Image1: | HiramJohnson.jpg |
| Nominee1: | Hiram Johnson |
| Party1: | Republican Party (US) |
| Alliance1: | Democratic Progressive |
| Popular Vote1: | 2,238,899 |
| Percentage1: | 82.62% |
| Nominee2: | Fred Dyster |
| Party2: | Prohibition Party (US) |
| Popular Vote2: | 366,044 |
| Percentage2: | 13.51% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Hiram Johnson |
| Before Party: | Republican Party (United States) |
| After Election: | Hiram Johnson |
| After Party: | Republican Party (United States) |
See main article: 1940 United States Senate election in California.
See also: List of United States senators from California.
| Election Name: | 1940 United States Senate election in Connecticut |
| Country: | Connecticut |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Connecticut |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Connecticut |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:FrancisMaloney.jpg |
| Nominee1: | Francis T. Maloney |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 416,740 |
| Percentage1: | 53.15% |
| Nominee2: | Paul L. Cornell |
| Party2: | Republican Party (United States) |
| Alliance2: | Union Party (United States) |
| Popular Vote2: | 358,313 |
| Percentage2: | 45.70% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Francis T. Maloney |
| Before Party: | Democratic Party (United States) |
| After Election: | Francis T. Maloney |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Connecticut.
See also: List of United States senators from Connecticut.
| Election Name: | 1940 United States Senate election in Delaware |
| Country: | Delaware |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Delaware |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Delaware |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Jamestunnell.jpg |
| Nominee1: | James M. Tunnell |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 68,294 |
| Percentage1: | 50.63% |
| Party2: | Republican Party (US) |
| Popular Vote2: | 63,799 |
| Percentage2: | 47.30% |
| U.S. Senator | |
| Map Size: | 200px |
| Before Party: | Republican Party (US) |
| After Party: | Democratic Party (US) |
See main article: 1940 United States Senate election in Delaware.
See also: List of United States senators from Delaware.
| Election Name: | 1940 United States Senate election in Florida |
| Country: | Florida |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1936 United States Senate special election in Florida (Class 1) |
| Previous Year: | 1936 (special) |
| Next Election: | 1946 United States Senate election in Florida |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Charlesoscarandrews.jpg |
| Nominee1: | Charles O. Andrews |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 323,216 |
| Percentage1: | 100.0% |
| Map Size: | 280px |
| U.S. Senator | |
| Before Election: | Charles O. Andrews |
| Before Party: | Democratic Party (US) |
| After Election: | Charles O. Andrews |
| After Party: | Democratic Party (US) |
| Flag Year: | 1900 |
See main article: 1940 United States Senate election in Florida.
See also: List of United States senators from Florida.
| Election Name: | 1940 United States Senate special election in Idaho |
| Country: | Idaho |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1936 United States Senate special election in Idaho |
| Previous Year: | 1936 |
| Next Election: | 1942 United States Senate election in Idaho |
| Next Year: | 1942 |
| Election Date: | November 5, 1940 |
| Image1: | File:John Thomas, senator from Idaho.jpg |
| Nominee1: | John Thomas |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 124,535 |
| Percentage1: | 52.96% |
| Nominee2: | Glen H. Taylor |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 110,614 |
| Percentage2: | 47.04% |
| Map Size: | 200px |
| U.S. Senator | |
| Before Election: | John Thomas |
| Before Party: | Republican Party (United States) |
| After Election: | John Thomas |
| After Party: | Republican Party (United States) |
See also: List of United States senators from Idaho.
| Election Name: | 1940 United States Senate special election in Illinois |
| Country: | Illinois |
| Flag Year: | 1915 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1936 United States Senate election in Illinois |
| Previous Year: | 1936 |
| Next Election: | 1942 United States Senate election in Illinois |
| Next Year: | 1942 |
| Election Date: | November 5, 1940 |
| Image1: | CWBrooks-Senator (1).jpg |
| Nominee1: | Charles W. Brooks |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 2,045,924 |
| Percentage1: | 50.07% |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 2,025,097 |
| Percentage2: | 49.56% |
| Map Size: | 300px |
| U.S. senator | |
| Before Party: | Democratic Party (United States) |
| After Party: | Republican Party (United States) |
See main article: 1940 United States Senate special election in Illinois.
See also: List of United States senators from Illinois.
| Election Name: | 1940 United States Senate election in Indiana |
| Country: | Indiana |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Indiana |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Indiana |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:Raymond Eugene Willis.jpg |
| Nominee1: | Raymond E. Willis |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 888,070 |
| Percentage1: | 50.45% |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 864,803 |
| Percentage2: | 49.13% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Party: | Democratic Party (United States) |
| After Party: | Republican Party (United States) |
See main article: 1940 United States Senate election in Indiana.
See also: List of United States senators from Indiana.
See also: List of United States senators from Kentucky.
| Election Name: | 1940 United States Senate election in Maine |
| Country: | Maine |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Maine |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Maine |
| Next Year: | 1946 |
| Election Date: | September 9, 1940 |
| Image1: | File:Owen Brewster 4a.jpg |
| Nominee1: | Owen Brewster |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 150,149 |
| Percentage1: | 58.61% |
| Nominee2: | Louis Brann |
| Party2: | Democratic Party (US) |
| Popular Vote2: | 105,740 |
| Percentage2: | 41.27% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Frederick Hale |
| Before Party: | Republican Party (US) |
| After Election: | Owen Brewster |
| After Party: | Republican Party (US) |
See main article: 1940 United States Senate election in Maine.
See also: List of United States senators from Maine.
See main article: 1940 United States Senate election in Maryland.
See also: List of United States senators from Maryland.
| Election Name: | 1940 United States Senate election in Maryland |
| Country: | Maryland |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Maryland |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Maryland |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Georgelpradcliffe.jpg |
| Nominee1: | George L. P. Radcliffe |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 394,239 |
| Percentage1: | 64.74% |
| Party2: | Republican Party (US) |
| Map Size: | 275px |
| Popular Vote2: | 203,912 |
| Percentage2: | 33.48% |
| U.S. Senator | |
| Before Party: | Democratic Party (US) |
| After Party: | Democratic Party (US) |
| Election Name: | 1940 United States Senate election in Massachusetts |
| Country: | Massachusetts |
| Flag Year: | 1908 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Massachusetts |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Massachusetts |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:Sen. David I. Walsh 1939 (cropped).jpg |
| Nominee1: | David I. Walsh |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 1,088,838 |
| Percentage1: | 55.64% |
| Nominee2: | Henry Parkman Jr. |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 838,122 |
| Percentage2: | 42.38% |
| Map Size: | 250px |
| Senator | |
| Before Election: | David I. Walsh |
| Before Party: | Democratic Party (United States) |
| After Election: | David I. Walsh |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Massachusetts.
See also: List of United States senators from Massachusetts.
| Election Name: | 1940 United States Senate election in Michigan |
| Country: | Michigan |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Michigan |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Michigan |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:Arthur H. Vandenberg.jpg |
| Nominee1: | Arthur Vandenberg |
| Party1: | Republican Party (US) |
| Popular Vote1: | 1,053,104 |
| Percentage1: | 52.65% |
| Nominee2: | Frank FitzGerald |
| Party2: | Democratic Party (US) |
| Popular Vote2: | 939,740 |
| Percentage2: | 46.98% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Arthur Vandenberg |
| Before Party: | Democratic Party (US) |
| After Election: | Arthur Vandenberg |
| After Party: | Republican Party (US) |
See main article: 1940 United States Senate election in Michigan.
See also: List of United States senators from Michigan.
| Election Name: | 1940 United States Senate election in Minnesota |
| Country: | Minnesota |
| Flag Year: | 1893 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Minnesota |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Minnesota |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Hshipstead.jpg |
| Nominee1: | Henrik Shipstead |
| Party1: | Republican Party of Minnesota |
| Popular Vote1: | 641,049 |
| Percentage1: | 53.01% |
| Party2: | Farmer–Labor Party |
| Popular Vote2: | 310,875 |
| Percentage2: | 25.71% |
| Image3: | John E. Regan.jpg |
| Nominee3: | John E. Regan |
| Party3: | Democratic Party of Minnesota |
| Popular Vote3: | 248,658 |
| Percentage3: | 20.56% |
| Map Size: | 260px |
| U.S. Senator | |
| Before Party: | Farmer–Labor Party |
| After Party: | Republican Party of Minnesota |
See main article: 1940 United States Senate election in Minnesota.
See also: List of United States senators from Minnesota.
| Election Name: | 1940 Democratic Senate primary election in Mississippi |
| Country: | Mississippi |
| Flag Image: | Flag of Mississippi (1894-1996).svg |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Mississippi |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Mississippi |
| Next Year: | 1946 |
| Election Date: | August 27, 1940 |
| Image1: | File:Theodore Bilbo (cropped).jpg |
| Nominee1: | Theodore Bilbo |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 91,334 |
| Percentage1: | 59.32% |
| Nominee2: | Hugh White |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 62,641 |
| Percentage2: | 40.68% |
| Map Size: | 255px |
| U.S. Senator | |
| Before Election: | Theodore Bilbo |
| Before Party: | Democratic Party (United States) |
| After Election: | Theodore Bilbo |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Mississippi.
See also: List of United States senators from Mississippi.
| Election Name: | 1940 United States Senate election in Missouri |
| Country: | Missouri |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Missouri |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Missouri |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Harry S. Truman LCCN2016890263 Crop.jpg |
| Nominee1: | Harry S. Truman |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 930,775 |
| Percentage1: | 51.17% |
| Nominee2: | Manvel H. Davis |
| Party2: | Republican Party (US) |
| Popular Vote2: | 886,376 |
| Percentage2: | 48.73% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Harry S. Truman |
| Before Party: | Democratic Party (US) |
| After Election: | Harry S. Truman |
| After Party: | Democratic Party (US) |
See main article: 1940 United States Senate election in Missouri.
See also: List of United States senators from Missouri. One-term Democrat Harry S. Truman was narrowly re-elected. He would only serve until resigning January 17, 1945, to become U.S. Vice President.
| Election Name: | 1940 United States Senate election in Montana |
| Country: | Montana |
| Flag Year: | 1905 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Montana |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Montana |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Nominee1: | Burton K. Wheeler |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 176,753 |
| Percentage1: | 73.43% |
| Nominee2: | E. K. Cheadle |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 63,941 |
| Percentage2: | 26.57% |
| U.S. Senator | |
| Before Election: | Burton K. Wheeler |
| Before Party: | Democratic Party (United States) |
| After Election: | Burton K. Wheeler |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Montana.
See also: List of United States senators from Montana.
| Election Name: | 1940 United States Senate election in Nebraska |
| Country: | Nebraska |
| Flag Year: | 1925 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Nebraska |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Nebraska |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | BUTLER, Hugh Alfred,.jpg |
| Nominee1: | Hugh A. Butler |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 340,250 |
| Percentage1: | 57.00% |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 247,659 |
| Percentage2: | 41.49% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Party: | Democratic Party (US) |
| After Party: | Republican Party (US) |
See main article: 1940 United States Senate election in Nebraska.
See also: List of United States senators from Nebraska.
| Election Name: | 1944 United States Senate election in Nevada |
| Country: | Nevada |
| Flag Year: | 1929 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Nevada |
| Previous Year: | 1934 |
| Next Election: | 1942 United States Senate special election in Nevada |
| Next Year: | 1942 (special) |
| Election Date: | November 5, 1940 |
| Image1: | File:PITTMAN, KEY. SENATOR LCCN2016858404 (cropped).jpg |
| Nominee1: | Key Pittman |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 31,351 |
| Percentage1: | 60.48% |
| Nominee2: | Samuel Platt |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 20,488 |
| Percentage2: | 39.52% |
| Map Size: | 200px |
| U.S. Senator | |
| Before Election: | Key Pittman |
| Before Party: | Democratic Party (United States) |
| After Election: | Key Pittman |
| After Party: | Democratic Party (United States) |
Pittman suffered a severe heart attack just before the election on November 5, and two doctors told his aides before the election that death was imminent. To avoid affecting the election, the party told the press that the senator was hospitalized for exhaustion and that his condition was not serious.[2] Pittman died on November 10 at the Washoe General Hospital in Reno, Nevada.[3] Governor Edward Carville would go on to appoint Berkeley L. Bunker as his replacement.
In later years, a myth spread that Pittman had in fact died before the election, and his body had been kept on ice in the Mizpah Hotel in Tonopah so that Carville could appoint his replacement.
See also: List of United States senators from Nevada.
| Election Name: | New Jersey election |
| Country: | New Jersey |
| Flag Year: | 1896 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1938 United States Senate special election in New Jersey |
| Previous Year: | 1938 (special) |
| Next Election: | 1944 United States Senate special election in New Jersey |
| Next Year: | 1944 (special) |
| Election Date: | November 5, 1940 |
| Image1: | William Warren Barbour.jpg |
| Nominee1: | W. Warren Barbour |
| Party1: | Republican Party (US) |
| Popular Vote1: | 1,029,331 |
| Percentage1: | 55.11% |
| Party2: | Democratic Party (US) |
| Popular Vote2: | 823,893 |
| Percentage2: | 44.11% |
| Map Size: | 250px |
| Senator | |
| Before Party: | Republican Party (US) |
| After Party: | Republican Party (US) |
See main article: 1940 United States Senate election in New Jersey.
See also: List of United States senators from New Jersey.
| Election Name: | 1940 United States Senate election in New Mexico |
| Country: | New Mexico |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1936 United States Senate special election in New Mexico |
| Previous Year: | 1936 (special) |
| Next Election: | 1936 United States Senate special election in New Mexico |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:Dennis Chavez cph.3b20083.jpg |
| Nominee1: | Dennis Chavez |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 103,194 |
| Percentage1: | 55.95% |
| Nominee2: | Albert K. Mitchell |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 81,257 |
| Percentage2: | 44.05% |
| Map Size: | 215px |
| U.S. Senator | |
| Before Election: | Dennis Chavez |
| Before Party: | Democratic Party (United States) |
| After Election: | Dennis Chavez |
| After Party: | Democratic Party (United States) |
See also: List of United States senators from New Mexico.
| Election Name: | 1940 United States Senate election in New York |
| Country: | New York |
| Flag Image: | Flag of New York (1909–2020).svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1938 United States Senate special election in New York |
| Previous Year: | 1938 (special) |
| Next Election: | 1946 United States Senate election in New York |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | James Mead.jpg |
| Nominee1: | James M. Mead |
| Party1: | Democratic Party (US) |
| Alliance1: | American Labor Party |
| Popular Vote1: | 3,274,766 |
| Percentage1: | 53.26% |
| Nominee2: | Bruce Barton |
| Party2: | Republican Party (US) |
| Popular Vote2: | 2,868,852 |
| Percentage2: | 46.66% |
| U.S. Senator | |
| Before Election: | James M. Mead |
| Before Party: | Democratic Party (US) |
| After Election: | James M. Mead |
| After Party: | Democratic Party (US) |
| Map Size: | 270px |
See main article: 1940 United States Senate election in New York.
See also: List of United States senators from New York. The whole ticket nominated by Democrats and American Laborites was elected.
| Election Name: | 1940 United States Senate election in North Dakota |
| Country: | North Dakota |
| Flag Year: | 1914 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in North Dakota |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in North Dakota |
| Next Year: | 1946 |
| Nominee1: | William Langer |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 100,647 |
| Percentage1: | 38.11% |
| Nominee2: | William Lemke |
| Party2: | Independent (politician) |
| Popular Vote2: | 92,593 |
| Percentage2: | 35.06% |
| Nominee3: | Charles V. Vogel |
| Party3: | Democratic Party (United States) |
| Popular Vote3: | 69,847 |
| Percentage3: | 26.45% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Gerald Nye |
| Before Party: | Republican Party (United States) |
| After Election: | Gerald Nye |
| After Party: | Republican Party (United States) |
See also: List of United States senators from North Dakota.
| Election Name: | 1940 United States Senate election in Ohio |
| Country: | Ohio |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Ohio |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Ohio |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:Harold Hitz Burton 1921.jpg |
| Nominee1: | Harold Burton |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 1,602,498 |
| Percentage1: | 52.37% |
| Nominee2: | John McSweeney |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 1,457,304 |
| Percentage2: | 47.63% |
| Map Size: | 200px |
| U.S. Senator | |
| Before Election: | Vic Donahey |
| Before Party: | Democratic Party (United States) |
| After Election: | Harold Hitz Burton |
| After Party: | Republican Party (United States) |
See main article: 1940 United States Senate election in Ohio.
See also: List of United States senators from Ohio.
| Election Name: | 1940 United States Senate election in Pennsylvania |
| Country: | Pennsylvania |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Pennsylvania |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Pennsylvania |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Joseph Guffey.jpg |
| Nominee1: | Joseph F. Guffey |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 2,069,980 |
| Percentage1: | 51.79% |
| Nominee2: | Jay Cooke |
| Party2: | Republican Party (US) |
| Popular Vote2: | 1,893,104 |
| Percentage2: | 47.36% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Joseph F. Guffey |
| Before Party: | Democratic Party (US) |
| After Election: | Joseph F. Guffey |
| After Party: | Democratic Party (US) |
See main article: 1940 United States Senate election in Pennsylvania.
See also: List of United States senators from Pennsylvania.
See also: List of United States senators from Rhode Island.
See main article: 1940 United States Senate election in Tennessee.
See also: List of United States senators from Tennessee.
| Election Name: | 1940 United States Senate election in Texas |
| Country: | Texas |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Texas |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Texas |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Nominee1: | Tom Connally |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 978,095 |
| Percentage1: | 94.24% |
| Nominee2: | George Shannon |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 59,340 |
| Percentage2: | 5.72% |
| U.S. Senator | |
| Before Election: | Tom Connally |
| Before Party: | Democratic Party (United States) |
| After Election: | Tom Connally |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Texas.
See also: List of United States senators from Texas.
| Election Name: | 1940 United States Senate election in Utah |
| Country: | Utah |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Utah |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Utah |
| Next Year: | 1946 |
| Image1: | Orrice Abram, Jr. Murdock.jpg |
| Nominee1: | Abe Murdock |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 155,499 |
| Percentage1: | 62.85% |
| Party2: | Republican Party (US) |
| Nominee2: | Philo Farnsworth |
| Popular Vote2: | 91,931 |
| Percentage2: | 37.15% |
| Map Size: | 200px |
| U.S. Senator | |
| Before Party: | Democratic Party (US) |
| After Party: | Democratic Party (US) |
See also: List of United States senators from Utah.
See also: List of United States senators from Vermont. There were 2 elections due to the June 20, 1940, death of two-term Republican Ernest Willard Gibson.
| Election Name: | 1940 United States Senate Election in Vermont |
| Country: | Vermont |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Vermont |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Vermont |
| Next Year: | 1946 |
| Image1: | Austin Warren Robinson.jpg |
| Nominee1: | Warren Austin |
| Party1: | Republican Party (US) |
| Popular Vote1: | 93,283 |
| Percentage1: | 66.4% |
| Party2: | Democratic Party (US) |
| Nominee2: | Ona Searles |
| Popular Vote2: | 47,101 |
| Percentage2: | 33.6% |
| Map Size: | 219px |
| U.S. Senator | |
| Before Party: | Republican Party (US) |
| After Party: | Republican Party (US) |
See main article: 1940 United States Senate election in Vermont. Two-term Republican Warren Austin was easily re-elected. He faced no opponents in the primary.
Austin served only until his August 2, 1946, resignation to become U.S. Ambassador to the United Nations.
| Election Name: | 1940 United States Senate Special Election in Vermont |
| Country: | Vermont |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1938 United States Senate election in Vermont |
| Previous Year: | 1938 |
| Next Election: | 1944 United States Senate election in Vermont |
| Next Year: | 1944 |
| Image1: | GeorgeAiken-VTSEN-.jpg |
| Nominee1: | George Aiken |
| Party1: | Republican Party (US) |
| Popular Vote1: | 87,150 |
| Percentage1: | 58.2% |
| Party2: | Democratic Party (US) |
| Nominee2: | Herbert Comings |
| Popular Vote2: | 54,263 |
| Percentage2: | 38.4% |
| Map Size: | 219px |
| U.S. Senator | |
| Before Party: | Republican Party (US) |
| After Party: | Republican Party (US) |
See main article: 1940 United States Senate special election in Vermont.
Gibson's son, Republican Ernest W. Gibson Jr. was appointed June 24, 1940, to continue his father's term, pending a special election, in which he was not a candidate.
Aiken did not take the seat until January 10, 1941, as he wanted to remain Governor of Vermont. He would be repeatedly re-elected and serve until his 1975 retirement.
| Election Name: | 1940 United States Senate election in Virginia |
| Country: | Virginia |
| Flag Year: | 1931 |
| Type: | presidential |
| Previous Election: | 1934 United States Senate election in Virginia |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Virginia |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Harry F. Byrd (cropped).jpg |
| Nominee1: | Harry F. Byrd Sr. |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 274,260 |
| Percentage1: | 93.32% |
| U.S. Senator | |
| Before Election: | Harry F. Byrd Sr. |
| Before Party: | Democratic Party (United States) |
| After Election: | Harry F. Byrd Sr. |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Virginia.
See also: List of United States senators from Virginia.
| Election Name: | 1940 United States Senate election in Washington |
| Country: | Washington |
| Flag Image: | Flag of Washington (1923–1967).svg |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Washington |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Washington |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:Governor Monrad Charles Wallgren (cropped).jpg |
| Nominee1: | Monrad Wallgren |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 404,718 |
| Percentage1: | 54.16% |
| Nominee2: | Stephen F. Chadwick |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 342,589 |
| Percentage2: | 45.84% |
| Map Size: | 270px |
| U.S. Senator | |
| Before Party: | Democratic Party (US) |
| After Party: | Democratic Party (US) |
See main article: 1940 United States Senate election in Washington.
See also: List of United States senators from Washington.
| Election Name: | 1940 United States Senate election in West Virginia |
| Country: | West Virginia |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in West Virginia |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in West Virginia |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:Harley M. Kilgore.jpg |
| Nominee1: | Harley M. Kilgore |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 492,413 |
| Percentage1: | 56.33% |
| Nominee2: | Thomas Sweeney |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 381,806 |
| Percentage2: | 43.67% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Russ D. Holt |
| Before Party: | Democratic Party (United States) |
| After Election: | Harley M. Kilgore |
| After Party: | Democratic Party (United States) |
See also: List of United States senators from West Virginia.
| Election Name: | 1940 United States Senate election in Wisconsin |
| Country: | Wisconsin |
| Flag Year: | 1913 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate election in Wisconsin |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Wisconsin |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | File:RMLaFolletteJr.jpg |
| Nominee1: | Robert La Follette Jr. |
| Party1: | Wisconsin Progressive Party |
| Popular Vote1: | 605,609 |
| Percentage1: | 45.26% |
| Nominee2: | Fred H. Clausen |
| Party2: | Republican Party (US) |
| Popular Vote2: | 553,692 |
| Percentage2: | 41.38% |
| Image3: | File:James E. Finnegan (WI).png |
| Party3: | Democratic Party (US) |
| Popular Vote3: | 176,688 |
| Percentage3: | 13.20% |
| U.S. Senator | |
| Before Party: | Wisconsin Progressive Party |
| After Party: | Wisconsin Progressive Party |
| Map Size: | 250px |
See main article: 1940 United States Senate election in Wisconsin.
See also: List of United States senators from Wisconsin.
| Election Name: | 1940 United States Senate election in Wyoming |
| Country: | Wyoming |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate elections in Wyoming |
| Previous Year: | 1934 |
| Next Election: | 1946 United States Senate election in Wyoming |
| Next Year: | 1946 |
| Election Date: | November 5, 1940 |
| Image1: | Sen. Joseph O'Mahoney, LCCN2016876768 (cropped).jpg |
| Nominee1: | Joseph C. O'Mahoney |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 65,022 |
| Percentage1: | 58.74% |
| Nominee2: | Milward Simpson |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 45,682 |
| Percentage2: | 41.26% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Joseph C. O'Mahoney |
| Before Party: | Democratic Party (United States) |
| After Election: | Joseph C. O'Mahoney |
| After Party: | Democratic Party (United States) |
See main article: 1940 United States Senate election in Wyoming.
See also: List of United States senators from Wyoming.