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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2010/US Senate/Illinois
      2010·US Senate·Illinois

      Illinois US Senate

      Winner
      REP
      Mark Steven Kirk
      48.0%1,778,698 votes
      Runner-up
      DEM
      Alex Giannoulias
      46.4%1,719,478 votes
      Margin
      R+1.6
      3,704,473 total votes
      3 candidates3,704,473 total votes
      CandidatePartyVotes ▼%Vote Share
      Mark Steven KirkREP✓
      		REP1,778,69848.0%
      Alex GiannouliasDEM
      		DEM1,719,47846.4%
      OtherOTH
      		OTH206,2975.6%

      Seat History

      US Senate in Illinois(Class I)

      2022
      Tammy DuckworthDEM
      D+15.3
      2020
      Richard J DurbinDEM
      D+16.1
      2016
      Tammy DuckworthDEM
      D+15.1
      2014
      Richard J DurbinDEM
      D+10.8
      2008
      Richard J DurbinDEM
      D+39.3
      2004
      Barack ObamaDEM
      D+42.9
      2002
      Richard J DurbinDEM
      D+22.3
      1998
      Peter G FitzgeraldREP
      R+2.9
      1996
      Richard J DurbinDEM
      D+15.4
      1992
      Carol Moseley-BraunDEM
      D+10.2
      1990
      Paul SimonDEM
      D+30.1
      1986
      Alan J. DixonDEM
      D+31.4
      1984
      Paul SimonDEM
      D+1.9
      1980
      Alan J. DixonDEM
      D+13.5
      View all US Senate history for Illinois →

      Candidates

      Alex GiannouliasDEM
      Record0W-1L
      Avg MarginR+1.6
      Career2010-2010
      US Senate
      Full profile →
      Mark Steven KirkREP
      Record6W-1L
      Avg MarginD+6.7
      Career2000-2016
      US Senate / US House
      Full profile →

      Also in Illinois, 2010

      US House19 contests →Governor1 contest →
      ← All 2010 US Senate races2010 overviewIllinois profileAll elections