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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1986/US Senate/Iowa
      1986·US Senate·Iowa

      Iowa US Senate

      Winner
      REP
      Charles E Grassley
      66.0%588,880 votes
      Runner-up
      DEM
      John P. Roehrick
      33.6%299,406 votes
      Margin
      R+32.5
      891,762 total votes
      3 candidates891,762 total votes
      CandidatePartyVotes ▼%Vote Share
      Charles E GrassleyREP✓
      		REP588,88066.0%
      John P. RoehrickDEM
      		DEM299,40633.6%
      OtherOTH
      		OTH3,4760.4%

      Seat History

      US Senate in Iowa(Class I)

      2022
      Charles E GrassleyREP
      R+12.2
      2020
      Joni K ErnstREP
      R+6.6
      2016
      Charles E GrassleyREP
      R+24.4
      2014
      Joni K ErnstREP
      R+8.3
      2010
      Charles E GrassleyREP
      R+31.1
      2008
      Tom HarkinDEM
      D+25.4
      2004
      Charles E GrassleyREP
      R+42.3
      2002
      Tom HarkinDEM
      D+10.4
      1998
      Charles E GrassleyREP
      R+37.9
      1996
      Tom HarkinDEM
      D+5.1
      1992
      Charles E GrassleyREP
      R+42.4
      1990
      Tom HarkinDEM
      D+9.1
      1984
      Tom HarkinDEM
      D+11.8
      1980
      Charles E GrassleyREP
      R+8.0
      View all US Senate history for Iowa →

      Candidates

      Charles E GrassleyREP
      Record12W-0L
      Avg MarginR+31.8
      Career1970-2022
      US Senate / US House / State House
      Full profile →
      John P. RoehrickDEM
      Record0W-1L
      Avg MarginR+32.5
      Career1986-1986
      US Senate
      Full profile →

      Also in Iowa, 1986

      US House6 contests →Governor1 contest →
      ← All 1986 US Senate races1986 overviewIowa profileAll elections