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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1978/US Senate/Maine
      1978·US Senate·Maine

      Maine US Senate

      Winner
      REP
      William S Cohen
      56.6%212,294 votes
      Runner-up
      DEM
      William Hathaway
      33.9%127,327 votes
      Margin
      R+22.6
      375,172 total votes
      3 candidates375,172 total votes
      CandidatePartyVotes ▼%Vote Share
      William S CohenREP✓
      		REP212,29456.6%
      William HathawayDEM
      		DEM127,32733.9%
      OtherOTH
      		OTH35,5519.5%

      Seat History

      US Senate in Maine(Class II)

      2024
      Angus KingDEM
      D+17.3
      2020
      Susan CollinsREP
      R+9.0
      2018
      Angus KingDEM
      D+21.2
      2014
      Susan CollinsREP
      R+37.0
      2012
      Angus KingDEM
      D+25.5
      2008
      Susan CollinsREP
      R+22.8
      2006
      Olympia J SnoweREP
      R+53.4
      2002
      Susan CollinsREP
      R+16.9
      2000
      Olympia J SnoweREP
      R+37.9
      1996
      Susan CollinsREP
      R+5.3
      1994
      Olympia J SnoweREP
      R+23.9
      1990
      William S CohenREP
      R+22.7
      1988
      George MitchellDEM
      D+62.4
      1984
      William S CohenREP
      R+47.5
      1982
      George MitchellDEM
      D+21.7
      View all US Senate history for Maine →

      Candidates

      William S CohenREP
      Record4W-0L
      Avg MarginR+30.9
      Career1976-1990
      US Senate / US House
      Full profile →
      William HathawayDEM
      Record1W-1L
      Avg MarginR+8.1
      Career1972-1978
      US Senate
      Full profile →

      Also in Maine, 1978

      US House2 contests →Governor1 contest →
      ← All 1978 US Senate races1978 overviewMaine profileAll elections