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/1990/US House/California/CA-01
      1990·US House·California·District profile →

      California District 1 US House

      Winner
      REP
      Frank D Riggs
      43.3%99,782 votes
      Runner-up
      DEM
      Douglas H Bosco
      41.9%96,468 votes
      Margin
      R+1.4
      230,261 total votes
      3 candidates230,261 total votes
      CandidatePartyVotes ▼%Vote Share
      Frank D RiggsREP✓
      		REP99,78243.3%
      Douglas H BoscoDEM
      		DEM96,46841.9%
      Darlene G ComingoreOTH
      		OTH34,01114.8%

      Presidential Vote by District

      5 elections · 2008–2024 · 118th Congress boundaries
      Latest (2024)R+24.9
      Shift vs 2020↓ R+5.8
      R+20EvenD+2020082012201620202024
      YearDem %Rep %MarginTurnout
      202436.1%61.1%R+24.9326,893
      202039.2%58.3%R+19.1348,189
      201635.6%57.4%R+21.8297,539
      201240.7%59.3%R+18.6274,988
      200842.5%56.7%R+14.2298,354

      Seat History

      US House in California

      2024
      Doug LamalfaREP
      R+30.7
      2022
      Doug LamalfaREP
      R+24.1
      Redistricted
      2020
      Doug LamalfaREP
      R+14.0
      2018
      Doug La MalfaREP
      R+9.8
      2016
      Doug LamalfaREP
      R+18.1
      2014
      Doug LamalfaREP
      R+22.1
      2012
      Doug La MalfaREP
      R+14.8
      Redistricted
      2010
      Mike ThompsonDEM
      D+31.8
      2008
      Mike ThompsonDEM
      D+44.7
      2006
      Mike ThompsonDEM
      D+37.3
      2004
      Mike ThompsonDEM
      D+38.7
      2002
      Mike ThompsonDEM
      D+31.7
      Redistricted
      2000
      Mike ThompsonDEM
      D+37.0
      1998
      Mike ThompsonDEM
      D+29.0
      1996
      Frank D RiggsREP
      R+6.2
      View all US House history for California →

      Candidates

      Douglas H BoscoDEM
      Record6W-1L
      Avg MarginD+26.4
      Career1978-1990
      US House / State House
      Full profile →
      Darlene G ComingoreOTH
      Record0W-1L
      Avg Margin---
      Career1990-1990
      US House
      Full profile →
      Frank D RiggsREP
      Record3W-1L
      Avg Margin---
      Career1990-1996
      US House
      Full profile →

      Also in California, 1990

      Governor1 contest →
      ← All 1990 US House races1990 overviewCalifornia profileAll elections