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United States · Election results history · 1966 Senate · Wyoming
Election 1966 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

1966 US Senate election in Wyoming

Clifford P. Hansen (Republican) beat Teno Roncalio (Democrat) in Wyoming in 1966, 51.8% to 48.2%, a margin of 3.6 points and 4,405 votes.

The Republican hold continued from 1960, when Keith Thomson won.

Republicans led in 18 of the 23 counties as they stood then and Democrats in 5. The largest, Laramie, cast 20,945 votes and went to the Democrat by 16.8 points. The closest was Uinta, where 96 votes separated the two parties.

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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

CandidatePartyVotesShare
Clifford P. Hansen won Republican 63,548 51.8%
Teno Roncalio Democratic 59,143 48.2%
Total122,691

Every county

CountyDemocratRepublicanOthersTotalMargin
Laramie 12,229 58.4% 8,716 41.6% 20,945 D+16.8
Natrona 8,509 49.0% 8,868 51.0% 17,377 R+2.1
Fremont 4,265 46.2% 4,965 53.8% 9,230 R+7.6
Sheridan 3,662 47.6% 4,039 52.4% 7,701 R+4.9
Albany 4,053 53.2% 3,571 46.8% 7,624 D+6.3
Sweetwater 4,875 70.3% 2,055 29.7% 6,930 D+40.7
Park 2,287 35.9% 4,085 64.1% 6,372 R+28.2
Carbon 3,275 58.5% 2,322 41.5% 5,597 D+17.0
Goshen 1,998 40.7% 2,915 59.3% 4,913 R+18.7
Big Horn 1,833 39.6% 2,795 60.4% 4,628 R+20.8
Lincoln 1,526 40.4% 2,249 59.6% 3,775 R+19.2
Washakie 1,218 38.1% 1,983 61.9% 3,201 R+23.9
Platte 1,447 46.8% 1,643 53.2% 3,090 R+6.3
Uinta 1,457 51.7% 1,361 48.3% 2,818 D+3.4
Campbell 958 36.8% 1,647 63.2% 2,605 R+26.4
Converse 992 38.4% 1,591 61.6% 2,583 R+23.2
Weston 904 38.6% 1,441 61.4% 2,345 R+22.9
Johnson 676 29.2% 1,638 70.8% 2,314 R+41.6
Hot Springs 1,076 47.3% 1,200 52.7% 2,276 R+5.4
Teton 634 33.3% 1,271 66.7% 1,905 R+33.4
Crook 433 27.1% 1,162 72.9% 1,595 R+45.7
Niobrara 461 30.1% 1,073 69.9% 1,534 R+39.9
Sublette 375 28.1% 958 71.9% 1,333 R+43.7

Counties as they stood in 1966; 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

YearWinnerMargin
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