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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1966/US Senate/Oklahoma
      1966·US Senate·Oklahoma

      Oklahoma US Senate

      Winner
      DEM
      Fred R. Harris
      53.7%343,157 votes
      Runner-up
      REP
      Pat J. Patterson
      46.3%295,585 votes
      Margin
      D+7.5
      638,742 total votes
      2 candidates638,742 total votes
      CandidatePartyVotes ▼%Vote Share
      Fred R. HarrisDEM✓
      		DEM343,15753.7%
      Pat J. PattersonREP
      		REP295,58546.3%

      Seat History

      US Senate in Oklahoma(Class I)

      2022
      James LankfordREP
      R+32.2
      2022(S)
      Markwayne MullinREP
      R+26.5
      2020
      James M InhofeREP
      R+30.2
      2016
      James LankfordREP
      R+43.2
      2014(S)
      James LankfordREP
      R+38.9
      2014
      James M InhofeREP
      R+39.5
      2010
      Tom A CoburnREP
      R+44.5
      2008
      James M InhofeREP
      R+17.5
      2004
      Tom A CoburnREP
      R+11.5
      2002
      James M InhofeREP
      R+21.0
      1998
      Don NicklesREP
      R+35.1
      1996
      James M InhofeREP
      R+16.6
      1994(S)
      James M InhofeREP
      R+15.4
      1992
      Don NicklesREP
      R+20.4
      1990
      David L BorenDEM
      D+66.3
      View all US Senate history for Oklahoma →

      Candidates

      Fred R. HarrisDEM
      Record2W-0L
      Avg MarginD+4.9
      Career1964-1966
      US Senate
      Full profile →
      Pat J. PattersonREP
      Record0W-1L
      Avg MarginD+7.5
      Career1966-1966
      US Senate
      Full profile →

      Also in Oklahoma, 1966

      Governor1 contest →
      ← All 1966 US Senate races1966 overviewOklahoma profileAll elections