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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2010/US House/Colorado/CO-04
      2010·US House·Colorado·District profile →

      Colorado District 4 US House

      Winner
      REP
      Cory Gardner
      52.5%138,634 votes
      Runner-up
      DEM
      Betsy Markey
      41.4%109,249 votes
      Margin
      R+11.1
      264,181 total votes
      4 candidates264,181 total votes
      CandidatePartyVotes ▼%Vote Share
      Cory GardnerREP✓
      		REP138,63452.5%
      Betsy MarkeyDEM
      		DEM109,24941.4%
      Doug AdenOTH
      		OTH12,3124.7%
      Ken \ WaszkiewiczOTH
      		OTH3,9861.5%

      Presidential Vote by District

      5 elections · 2008–2024 · 118th Congress boundaries
      Latest (2024)R+18.2
      Shift vs 2020↑ D+0.3
      R+20EvenD+2020082012201620202024
      YearDem %Rep %MarginTurnout
      202439.6%57.9%R+18.2461,578
      202039.5%58.0%R+18.6442,183
      201632.1%59.6%R+27.4365,046
      201236.1%63.9%R+27.8320,451
      200838.7%59.4%R+20.7300,826

      Seat History

      US House in Colorado

      2024
      Lauren BoebertREP
      R+11.6
      2022
      Ken BuckREP
      R+24.4
      Redistricted
      2020
      Ken BuckREP
      R+23.5
      2018
      Ken BuckREP
      R+21.2
      2016
      Ken BuckREP
      R+31.9
      2014
      Ken BuckREP
      R+35.5
      2012
      Cory GardnerREP
      R+21.7
      Redistricted
      2008
      Betsy MarkeyDEM
      D+12.4
      2006
      Marilyn N MusgraveREP
      R+2.5
      2004
      Marilyn N MusgraveREP
      R+6.3
      2002
      Marilyn N MusgraveREP
      R+13.3
      Redistricted
      2000
      Robert W SchafferREP
      R+79.5
      1998
      Robert W SchafferREP
      R+18.7
      1996
      Robert W SchafferREP
      R+18.1
      View all US House history for Colorado →

      Candidates

      Cory GardnerREP
      Record5W-1L
      Avg MarginR+36.5
      Career2006-2020
      US Senate / US House / State House
      Full profile →
      Betsy MarkeyDEM
      Record1W-1L
      Avg Margin---
      Career2008-2010
      US House
      Full profile →
      Doug AdenOTH
      Record0W-13L
      Avg MarginR+85.3
      Career2010-2014
      State Senate / US House
      Full profile →
      Ken \ WaszkiewiczOTH
      Record0W-1L
      Avg Margin---
      Career2010-2010
      US House
      Full profile →

      Also in Colorado, 2010

      US Senate1 contest →Governor1 contest →
      ← All 2010 US House races2010 overviewColorado profileAll elections