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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1948/US Senate/Iowa
      1948·US Senate·Iowa

      Iowa US Senate

      Winner
      DEM
      Guy M. Gillette
      57.8%578,226 votes
      Runner-up
      REP
      George A. Wilson
      41.6%415,778 votes
      Margin
      D+16.2
      1,000,412 total votes
      3 candidates1,000,412 total votes
      CandidatePartyVotes ▼%Vote Share
      Guy M. GilletteDEM✓
      		DEM578,22657.8%
      George A. WilsonREP
      		REP415,77841.6%
      OtherOTH
      		OTH6,4080.6%

      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
      1986
      Charles E GrassleyREP
      R+32.5
      1984
      Tom HarkinDEM
      D+11.8
      1980
      Charles E GrassleyREP
      R+8.0
      View all US Senate history for Iowa →

      Candidates

      George A. WilsonREP
      Record1W-1L
      Avg MarginR+0.0
      Career1942-1948
      US Senate
      Full profile →
      Guy M. GilletteDEM
      Record3W-2L
      Avg MarginD+2.9
      Career1936-1954
      US Senate
      Full profile →

      Also in Iowa, 1948

      President1 contest →Governor1 contest →
      ← All 1948 US Senate races1948 overviewIowa profileAll elections