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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1978/US House/California/CA-42
      1978·US House·California·District profile →

      California District 42 US House

      Winner
      DEM
      Lionel Van Deerlin
      73.7%85,126 votes
      Runner-up
      REP
      Lawrence C Mattera
      26.3%30,319 votes
      Margin
      D+47.5
      115,445 total votes
      2 candidates115,445 total votes
      CandidatePartyVotes ▼%Vote Share
      Lionel Van DeerlinDEM✓
      		DEM85,12673.7%
      Lawrence C MatteraREP
      		REP30,31926.3%

      Presidential Vote by District

      5 elections · 2008–2024 · 118th Congress boundaries
      Latest (2024)D+32.4
      Shift vs 2020↓ R+13.4
      R+30EvenD+3020082012201620202024
      YearDem %Rep %MarginTurnout
      202464.5%32.0%D+32.4248,059
      202071.7%25.9%D+45.8289,669
      201672.3%21.6%D+50.7234,937
      201272.3%27.7%D+44.7208,323
      200869.4%30.2%D+39.2201,715

      Seat History

      US House in California

      2024
      Robert M GarciaDEM
      D+36.3
      2022
      Robert M GarciaDEM
      D+36.7
      Redistricted
      2020
      Ken CalvertREP
      R+14.3
      2018
      Ken CalvertREP
      R+13.0
      2016
      Ken CalvertREP
      R+17.6
      2014
      Ken CalvertREP
      R+31.5
      2012
      Ken CalvertREP
      R+21.2
      Redistricted
      2010
      Gary G MillerREP
      R+30.4
      2008
      Gary G MillerREP
      R+20.3
      2006
      Gary G MillerREP
      R+100.0
      2004
      Gary G MillerREP
      R+36.3
      2002
      Gary G MillerREP
      R+38.8
      Redistricted
      2000
      Joe BacaDEM
      D+24.6
      1998
      George E Brown Jr.DEM
      D+15.0
      1996
      George E Brown Jr.DEM
      D+1.0
      View all US House history for California →

      Candidates

      Lionel Van DeerlinDEM
      Record2W-1L
      Avg Margin---
      Career1976-1980
      US House
      Full profile →
      Lawrence C MatteraREP
      Record0W-1L
      Avg Margin---
      Career1978-1978
      US House
      Full profile →

      Also in California, 1978

      Governor1 contest →
      ← All 1978 US House races1978 overviewCalifornia profileAll elections