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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1988/US Senate/Arizona
      1988·US Senate·Arizona

      Arizona US Senate

      Winner
      DEM
      Dennis Deconcini
      56.7%660,403 votes
      Runner-up
      REP
      Keith Degreen
      41.0%478,060 votes
      Margin
      D+15.7
      1,164,539 total votes
      3 candidates1,164,539 total votes
      CandidatePartyVotes ▼%Vote Share
      Dennis DeconciniDEM✓
      		DEM660,40356.7%
      Keith DegreenREP
      		REP478,06041.0%
      OtherOTH
      		OTH26,0762.2%

      Seat History

      US Senate in Arizona(Class II)

      2024
      Ruben GallegoDEM
      D+2.4
      2022
      Mark KellyDEM
      D+4.9
      2020(S)
      Mark KellyDEM
      D+2.4
      2018
      Krysten SinemaDEM
      D+2.3
      2016
      John McCainREP
      R+13.0
      2012
      Jeff FlakeREP
      R+3.0
      2010
      John McCainREP
      R+24.2
      2006
      Jon L KylREP
      R+9.8
      2004
      John McCainREP
      R+56.1
      2000
      Jon L KylREP
      R+79.3
      1998
      John McCainREP
      R+41.6
      1994
      Jon L KylREP
      R+14.2
      1992
      John McCainREP
      R+24.2
      1986
      John McCainREP
      R+21.0
      View all US Senate history for Arizona →

      Candidates

      Dennis DeconciniDEM
      Record3W-0L
      Avg MarginD+14.3
      Career1976-1988
      US Senate
      Full profile →
      Keith DegreenREP
      Record0W-1L
      Avg MarginD+15.7
      Career1988-1988
      US Senate
      Full profile →

      Also in Arizona, 1988

      President1 contest →US House5 contests →
      ← All 1988 US Senate races1988 overviewArizona profileAll elections