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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1970/US Senate/Delaware
      1970·US Senate·Delaware

      Delaware US Senate

      Winner
      REP
      William R. Roth Jr.
      58.8%94,979 votes
      Runner-up
      DEM
      Jacob Zimmeramn
      40.1%64,740 votes
      Margin
      R+18.7
      161,439 total votes
      3 candidates161,439 total votes
      CandidatePartyVotes ▼%Vote Share
      William R. Roth Jr.REP✓
      		REP94,97958.8%
      Jacob ZimmeramnDEM
      		DEM64,74040.1%
      OtherOTH
      		OTH1,7201.1%

      Seat History

      US Senate in Delaware(Class II)

      2024
      Lisa Blunt RochesterDEM
      D+17.1
      2020
      Chris CoonsDEM
      D+21.5
      2018
      Thomas R CarperDEM
      D+22.1
      2014
      Chris CoonsDEM
      D+13.6
      2012
      Thomas R CarperDEM
      D+37.5
      2010(S)
      Chris CoonsDEM
      D+16.6
      2008
      Joe BidenDEM
      D+29.4
      2006
      Thomas R CarperDEM
      D+39.7
      2002
      Joe BidenDEM
      D+17.4
      2000
      Thomas R CarperDEM
      D+11.8
      1996
      Joe BidenDEM
      D+21.9
      1994
      William R. Roth Jr.REP
      R+13.3
      1990
      Joe BidenDEM
      D+26.9
      1988
      William R. Roth Jr.REP
      R+24.1
      1984
      Joe BidenDEM
      D+20.2
      View all US Senate history for Delaware →

      Candidates

      Jacob ZimmeramnDEM
      Record0W-1L
      Avg MarginR+18.7
      Career1970-1970
      US Senate
      Full profile →
      William R. Roth Jr.REP
      Record5W-1L
      Avg MarginR+11.3
      Career1970-2000
      US Senate
      Full profile →
      ← All 1970 US Senate races1970 overviewDelaware profileAll elections