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

      South Dakota US Senate

      Winner
      DEM
      Thomas A Daschle
      51.6%152,657 votes
      Runner-up
      REP
      James Abdnor
      48.4%143,173 votes
      Margin
      D+3.2
      295,830 total votes
      2 candidates295,830 total votes
      CandidatePartyVotes ▼%Vote Share
      Thomas A DaschleDEM✓
      		DEM152,65751.6%
      James AbdnorREP
      		REP143,17348.4%

      Seat History

      US Senate in South Dakota(Class I)

      2022
      John R ThuneREP
      R+43.5
      2020
      Michael RoundsREP
      R+31.5
      2016
      John R ThuneREP
      R+43.7
      2014
      Michael RoundsREP
      R+20.9
      2010
      John R ThuneREP
      R+100.0
      2008
      Timothy V JohnsonDEM
      D+25.0
      2004
      John R ThuneREP
      R+1.1
      2002
      Timothy V JohnsonDEM
      D+0.2
      1998
      Thomas A DaschleDEM
      D+25.7
      1996
      Timothy V JohnsonDEM
      D+2.6
      1992
      Thomas A DaschleDEM
      D+32.4
      1990
      Larry PresslerREP
      R+7.3
      1984
      Larry PresslerREP
      R+49.0
      1980
      James AbdnorREP
      R+18.8
      View all US Senate history for South Dakota →

      Candidates

      James AbdnorREP
      Record3W-1L
      Avg MarginR+7.8
      Career1976-1986
      US Senate / US House
      Full profile →
      Thomas A DaschleDEM
      Record7W-1L
      Avg MarginD+15.1
      Career1978-2004
      US Senate / US House
      Full profile →

      Also in South Dakota, 1986

      US House1 contest →Governor1 contest →
      ← All 1986 US Senate races1986 overviewSouth Dakota profileAll elections