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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1920/US Senate/Iowa
      1920·US Senate·Iowa

      Iowa US Senate

      Winner
      REP
      Albert B. Cummins
      61.4%528,499 votes
      Runner-up
      DEM
      Claude R. Porter
      37.4%322,015 votes
      Margin
      R+24.0
      860,470 total votes
      3 candidates860,470 total votes
      CandidatePartyVotes ▼%Vote Share
      Albert B. CumminsREP✓
      		REP528,49961.4%
      Claude R. PorterDEM
      		DEM322,01537.4%
      OtherOTH
      		OTH9,9561.2%

      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

      Albert B. CumminsREP
      Record5W-0L
      Avg MarginR+15.6
      Career1901-1920
      US Senate / Governor
      Full profile →
      Claude R. PorterDEM
      Record0W-5L
      Avg MarginR+9.9
      Career1906-1926
      US Senate / Governor
      Full profile →

      Also in Iowa, 1920

      President1 contest →Governor1 contest →
      ← All 1920 US Senate races1920 overviewIowa profileAll elections