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1940
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Wyoming
1940
·
US Senate
·
Wyoming
Wyoming US Senate
Winner
DEM
Joseph O'Mahoney
58.7%
65,022 votes
Runner-up
REP
Milward Simpson
41.3%
45,682 votes
Margin
D+17.5
110,704
total votes
2 candidates
110,704 total votes
Export CSV
Candidate
Party
Votes ▼
%
Vote Share
Joseph O'Mahoney
DEM
✓
DEM
65,022
58.7%
Milward Simpson
REP
REP
45,682
41.3%
Seat History
US Senate in Wyoming
(Class II)
2024
John Barrasso
REP
R+51.0
2020
Cynthia M Lummis
REP
R+46.1
2018
John Barrasso
REP
R+36.9
2014
Michael B Enzi
REP
R+54.7
2012
John Barrasso
REP
R+54.0
2008
(S)
John Barrasso
REP
R+46.8
2008
Michael B Enzi
REP
R+51.4
2006
Craig Thomas
REP
R+40.1
2002
Michael B Enzi
REP
R+45.9
2000
Craig Thomas
REP
R+51.7
1996
Michael B Enzi
REP
R+11.8
1994
Craig Thomas
REP
R+19.6
1990
Alan K. Simpson
REP
R+27.9
1988
Malcolm Wallop
REP
R+0.7
1984
Alan K. Simpson
REP
R+56.6
View all US Senate history for Wyoming →
Candidates
Joseph O'Mahoney
DEM
Record
4W-1L
Avg Margin
D+8.7
Career
1934-1954
US Senate
Full profile →
Milward Simpson
REP
Record
2W-2L
Avg Margin
D+0.8
Career
1940-1962
US Senate / Governor
Full profile →
Also in Wyoming, 1940
President
1 contest →
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1940 overview
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