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1980
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US Senate
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Colorado
1980
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US Senate
·
Colorado
Colorado US Senate
Winner
DEM
Gary Hart
50.3%
590,501 votes
Runner-up
REP
Mary E. Buchanan
48.7%
571,295 votes
Margin
D+1.6
1,173,646
total votes
3 candidates
1,173,646 total votes
Export CSV
Candidate
Party
Votes ▼
%
Vote Share
Gary Hart
DEM
✓
DEM
590,501
50.3%
Mary E. Buchanan
REP
REP
571,295
48.7%
Other
OTH
OTH
11,850
1.0%
Seat History
US Senate in Colorado
(Class I)
2022
Michael Bennet
DEM
D+14.6
2020
John Hickenlooper
DEM
D+2.4
2016
Michael Bennet
DEM
D+5.7
2014
Cory Gardner
REP
R+1.9
2010
Michael Bennet
DEM
D+1.7
2008
Mark Emery Udall
DEM
D+10.3
2004
Ken Salazar
DEM
D+4.8
2002
Wayne Allard
REP
R+4.9
1998
Ben Nighthorse Campbell
REP
R+27.5
1996
Wayne Allard
REP
R+5.0
1992
Ben Nighthorse Campbell
DEM
D+9.1
1990
Hank Brown
REP
R+14.0
1986
Timothy Wirth
DEM
D+1.6
1984
William L Armstrong
REP
R+29.6
View all US Senate history for Colorado →
Candidates
Gary Hart
DEM
Record
2W-2L
Avg Margin
D+0.4
Career
1974-2002
State House / State Senate / US Senate
Full profile →
Mary E. Buchanan
REP
Record
0W-1L
Avg Margin
D+1.6
Career
1980-1980
US Senate
Full profile →
Also in Colorado, 1980
President
1 contest →
US House
5 contests →
← All 1980 US Senate races
1980 overview
Colorado profile
All elections