Election 1940 Results
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1940 US Senate election in Wyoming
Joseph C. O'Mahoney (Democrat) beat Milward L. Simpson (Republican) in Wyoming in 1940, 58.7% to 41.3%, a margin of 17.5 points and 19,340 votes.
The Democratic hold continued from 1934, when Joseph C. O'Mahoney also won.
Democrats led in 17 of the 23 counties as they stood then and Republicans in 6. The largest, Laramie, cast 13,727 votes and went to the Democrat by 29.0 points. The closest was Campbell, where 1 vote separated the two parties.
Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.
Senate
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Joseph C. O'Mahoney won | Democratic | 65,022 | 58.7% |
| Milward L. Simpson | Republican | 45,682 | 41.3% |
| Total | 110,704 |
Every county
| County | Democrat | Republican | Others | Total | Margin |
|---|---|---|---|---|---|
| Laramie | 8,854 64.5% | 4,873 35.5% | 13,727 | D+29.0 | |
| Natrona | 6,638 56.1% | 5,184 43.9% | 11,822 | D+12.3 | |
| Sweetwater | 6,755 75.6% | 2,175 24.4% | 8,930 | D+51.3 | |
| Sheridan | 4,844 59.8% | 3,257 40.2% | 8,101 | D+19.6 | |
| Albany | 4,648 69.1% | 2,078 30.9% | 6,726 | D+38.2 | |
| Fremont | 3,358 52.0% | 3,104 48.0% | 6,462 | D+3.9 | |
| Carbon | 3,764 60.6% | 2,451 39.4% | 6,215 | D+21.1 | |
| Big Horn | 3,037 57.1% | 2,280 42.9% | 5,317 | D+14.2 | |
| Park | 2,525 48.7% | 2,660 51.3% | 5,185 | R+2.6 | |
| Goshen | 2,446 51.3% | 2,323 48.7% | 4,769 | D+2.6 | |
| Lincoln | 2,896 63.9% | 1,635 36.1% | 4,531 | D+27.8 | |
| Platte | 2,049 57.6% | 1,511 42.4% | 3,560 | D+15.1 | |
| Uinta | 2,024 61.7% | 1,254 38.3% | 3,278 | D+23.5 | |
| Converse | 1,521 47.0% | 1,715 53.0% | 3,236 | R+6.0 | |
| Campbell | 1,308 50.0% | 1,307 50.0% | 2,615 | level | |
| Niobrara | 1,285 49.5% | 1,310 50.5% | 2,595 | R+1.0 | |
| Johnson | 954 42.0% | 1,320 58.0% | 2,274 | R+16.1 | |
| Weston | 1,111 49.4% | 1,140 50.6% | 2,251 | R+1.3 | |
| Crook | 993 45.3% | 1,198 54.7% | 2,191 | R+9.4 | |
| Hot Springs | 1,422 65.3% | 755 34.7% | 2,177 | D+30.6 | |
| Washakie | 1,166 57.6% | 858 42.4% | 2,024 | D+15.2 | |
| Sublette | 719 51.8% | 668 48.2% | 1,387 | D+3.7 | |
| Teton | 705 53.0% | 626 47.0% | 1,331 | D+5.9 |
Counties as they stood in 1940; some have since been split, merged or renamed. Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.
Wyoming Senate elections we hold
| Year | Winner | Margin |
|---|---|---|
| 2024 | John Barrasso (R) | R+51.0 |
| 2020 | Cynthia M Lummis (R) | R+46.1 |
| 2018 | John Barrasso (R) | R+36.9 |
| 2014 | Mike Enzi (R) | R+54.7 |
| 2012 | John Barrasso (R) | R+54.0 |
| 2008 | Michael B. Enzi (R) | R+51.4 |
| 2006 | Craig L. Thomas (R) | R+40.1 |
| 2002 | Michael B. Enzi (R) | R+45.9 |
| 2000 | Craig Thomas (R) | R+51.7 |
| 1996 | Michael B. Enzi (R) | R+11.9 |
| 1994 | Craig Thomas (R) | R+19.6 |
| 1990 | Alan K. Simpson (R) | R+27.9 |
| 1988 | Malcolm Wallop (R) | R+0.7 |
| 1984 | Al Simpson (R) | R+56.6 |
| 1982 | Malcolm Wallop (R) | R+13.3 |
| 1978 | Alan Simpson (R) | R+24.3 |
| 1976 | Malcolm Wallop (R) | R+9.2 |
| 1972 | Clifford P. Hansen (R) | R+42.6 |
| 1970 | Gale McGee (D) | D+11.6 |
| 1966 | Clifford P. Hansen (R) | R+3.6 |
| 1964 | Gale McGee (D) | D+8.0 |
| 1960 | Keith Thomson (R) | R+12.7 |
| 1958 | Gale McGee (D) | D+1.7 |
| 1954 | Joseph O'Mahoney (D) | D+3.1 |
| 1952 | Frank A. Barrett (R) | R+3.3 |
| 1948 | Lester C. Hunt (D) | D+14.2 |
| 1946 | Joseph C. O'Mahoney (D) | D+12.4 |
| 1942 | Edward V. Robertson (R) | R+9.2 |
| 1940 | Joseph C. O'Mahoney (D) | D+17.5 |
| 1936 | Harry H. Schwartz (D) | D+8.4 |
| 1934 | Joseph C. O'Mahoney (D) | D+13.7 |
| 1930 | Robert D. Carey (R) | R+18.1 |
| 1928 | John B. Kendrick (D) | D+7.4 |
| 1924 | Francis E. Warren (R) | R+10.0 |
| 1922 | John B. Kendrick (D) | D+14.5 |
| 1918 | Francis E. Warren (R) | R+15.5 |
| 1916 | John B. Kendrick (D) | D+6.0 |