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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/2010/US Senate/California
      2010·US Senate·California

      California US Senate

      Winner
      DEM
      Barbara Boxer
      52.2%5,218,137 votes
      Runner-up
      REP
      Carly Fiorina
      42.2%4,217,386 votes
      Margin
      D+10.0
      9,999,860 total votes
      3 candidates9,999,860 total votes
      CandidatePartyVotes ▼%Vote Share
      Barbara BoxerDEM✓
      		DEM5,218,13752.2%
      Carly FiorinaREP
      		REP4,217,38642.2%
      OtherOTH
      		OTH564,3375.6%

      Seat History

      US Senate in California(Class II)

      2024
      Adam B SchiffDEM
      D+17.8
      2022
      Alex PadillaDEM
      D+22.1
      2018(JP)
      Dianne FeinsteinDEM
      ---
      2016(JP)
      Kamala HarrisDEM
      ---
      2012
      Dianne FeinsteinDEM
      D+25.1
      2006
      Dianne FeinsteinDEM
      D+24.4
      2004
      Barbara BoxerDEM
      D+19.9
      2000
      Dianne FeinsteinDEM
      D+19.3
      1998
      Barbara BoxerDEM
      D+10.1
      1994
      Dianne FeinsteinDEM
      D+1.9
      1992(S)
      Dianne FeinsteinDEM
      D+16.3
      1992
      Barbara BoxerDEM
      D+4.9
      1988
      Pete WilsonREP
      R+8.8
      1986
      Alan CranstonDEM
      D+1.4
      View all US Senate history for California →

      Candidates

      Barbara BoxerDEM
      Record9W-0L
      Avg MarginD+11.2
      Career1982-2010
      US Senate / US House
      Full profile →
      Carly FiorinaREP
      Record0W-1L
      Avg MarginD+10.0
      Career2010-2010
      US Senate
      Full profile →

      Also in California, 2010

      US House53 contests →Governor1 contest →
      ← All 2010 US Senate races2010 overviewCalifornia profileAll elections