Akashic EdgeAKASHIC EDGE
ElectionsCandidates
HistorianCartographer2026 ForecastArticlesAPIPricing

Latest Articles

    View all articles →

    Browse by Category

      Data Tools

      • Elections
      • Candidates
      • The Historian
      • The Cartographer
      • American Nations
      • States & Counties
      • Congressional Districts

      About

      Akashic HQ provides deep political data analysis covering 165 years of U.S. elections.

      • Data Sources & Methodology
      • Pricing
      • API Documentation
      • Contact

      © 2026 Akashic HQ. All rights reserved.

      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1978/US House/California/CA-18
      1978·US House·California·District profile →

      California District 18 US House

      Winner
      REP
      William M Thomas
      59.3%85,663 votes
      Runner-up
      DEM
      Bob Sogge
      40.7%58,900 votes
      Margin
      R+18.5
      144,563 total votes
      2 candidates144,563 total votes
      CandidatePartyVotes ▼%Vote Share
      William M ThomasREP✓
      		REP85,66359.3%
      Bob SoggeDEM
      		DEM58,90040.7%

      Presidential Vote by District

      5 elections · 2008–2024 · 118th Congress boundaries
      Latest (2024)D+29.5
      Shift vs 2020↓ R+14.6
      R+40R+20EvenD+20D+4020082012201620202024
      YearDem %Rep %MarginTurnout
      202463.2%33.7%D+29.5236,237
      202071.0%26.9%D+44.1267,951
      201671.5%22.7%D+48.8209,358
      201273.7%26.3%D+47.3182,131
      200871.5%28.0%D+43.5178,965

      Seat History

      US House in California

      2024
      Zoe LofgrenDEM
      D+29.3
      2022
      Zoe LofgrenDEM
      D+31.7
      Redistricted
      2020
      Anna G EshooDEM
      D+100.0
      2018
      Anna G EshooDEM
      D+49.0
      2016
      Anna G EshooDEM
      D+42.3
      2014
      Anna G EshooDEM
      D+35.5
      2012
      Anna G EshooDEM
      D+41.0
      Redistricted
      2010
      Dennis A CardozaDEM
      D+17.0
      2008
      Dennis A CardozaDEM
      D+100.0
      2006
      Dennis A CardozaDEM
      D+30.9
      2004
      Dennis A CardozaDEM
      D+35.0
      2002
      Dennis A CardozaDEM
      D+7.9
      Redistricted
      2000
      Gary A ConditDEM
      D+35.8
      1998
      Gary A ConditDEM
      D+86.8
      1996
      Gary A ConditDEM
      D+33.9
      View all US House history for California →

      Candidates

      Bob SoggeDEM
      Record0W-1L
      Avg Margin---
      Career1978-1978
      US House
      Full profile →
      William M ThomasREP
      Record16W-0L
      Avg MarginR+11.8
      Career1974-2004
      US House / State House
      Full profile →

      Also in California, 1978

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