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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1980/US Senate/Colorado
      1980·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 candidates1,173,646 total votes
      CandidatePartyVotes ▼%Vote Share
      Gary HartDEM✓
      		DEM590,50150.3%
      Mary E. BuchananREP
      		REP571,29548.7%
      OtherOTH
      		OTH11,8501.0%

      Seat History

      US Senate in Colorado(Class I)

      2022
      Michael BennetDEM
      D+14.6
      2020
      John HickenlooperDEM
      D+2.4
      2016
      Michael BennetDEM
      D+5.7
      2014
      Cory GardnerREP
      R+1.9
      2010
      Michael BennetDEM
      D+1.7
      2008
      Mark Emery UdallDEM
      D+10.3
      2004
      Ken SalazarDEM
      D+4.8
      2002
      Wayne AllardREP
      R+4.9
      1998
      Ben Nighthorse CampbellREP
      R+27.5
      1996
      Wayne AllardREP
      R+5.0
      1992
      Ben Nighthorse CampbellDEM
      D+9.1
      1990
      Hank BrownREP
      R+14.0
      1986
      Timothy WirthDEM
      D+1.6
      1984
      William L ArmstrongREP
      R+29.6
      View all US Senate history for Colorado →

      Candidates

      Gary HartDEM
      Record2W-2L
      Avg MarginD+0.4
      Career1974-2002
      State House / State Senate / US Senate
      Full profile →
      Mary E. BuchananREP
      Record0W-1L
      Avg MarginD+1.6
      Career1980-1980
      US Senate
      Full profile →

      Also in Colorado, 1980

      President1 contest →US House5 contests →
      ← All 1980 US Senate races1980 overviewColorado profileAll elections