1974 United States Senate election in Colorado

1974 United States Senate election in Colorado

← 1968 November 5, 1974 1980 →

Nominee Gary Hart Peter Dominick Party Democratic Republican Popular vote 471,691 325,508 Percentage 57.23% 39.50%

County results Hart:      40–50%      50–60%      60–70% Dominick:      40-50%      50–60%      60–70%

U.S. senator before election Peter Dominick Republican Elected U.S. Senator Gary Hart Democratic

Elections in Colorado
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Ballot measures List of Colorado ballot measures 1893 2 1972 8 1974 1 1982 1 1992 2 2000 20 2004 36 2006 38 41 42 43 44 E F G H I J K 2008 46 47 48 49 50 51 52 54 58 59 L 2010 62 2012 64 2018 A 2020 B C EE 113 114 2022 125 126 FF 2023 HH II 2024 79 80 I J 127 128 129 131
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v t e

The 1974 United States Senate election in Colorado took place on November 5, 1974. Incumbent Republican U.S. Senator Peter Dominick ran for re-election to a third term in office, but was defeated by Democrat Gary Hart. As of 2024, this is the last time that an incumbent Senator from Colorado lost re-election for this seat, and the last time that El Paso County voted for the Democratic candidate in a Senate election.

• Gary Hart, campaign manager for George McGovern in 1972
• Marty Miller, Arapahoe County District Attorney
• Herrick Roth, former State Senator from Denver

1974 United States Senate election in Colorado^[2]

Party		Candidate	Votes	%	±%
	Democratic	Gary Hart	471,691	57.23%	15.78
	Republican	Peter Dominick (incumbent)	325,508	39.50%	19.05
	Independent	John M. King	16,131	1.96%	N/A
	Prohibition	Joseph Fred Hyskell	8,410	1.02%	1.02
	Independent	Henry John Olshaw	2,395	0.29%	N/A
	Independent	Jack Marsh (write-in)	31	0.00%	N/A
Total votes			824,166	100.00%
	Democratic gain from Republican		Swing

• 1974 United States Senate elections