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 Senate/Idaho
      1978·US Senate·Idaho

      Idaho US Senate

      Winner
      REP
      James A. McClure
      68.4%194,412 votes
      Runner-up
      DEM
      Dwight Jensen
      31.6%89,635 votes
      Margin
      R+36.9
      284,047 total votes
      2 candidates284,047 total votes
      CandidatePartyVotes ▼%Vote Share
      James A. McClureREP✓
      		REP194,41268.4%
      Dwight JensenDEM
      		DEM89,63531.6%

      Seat History

      US Senate in Idaho(Class I)

      2022
      Mike CrapoREP
      R+31.9
      2020
      Jim RischREP
      R+29.4
      2016
      Michael D CrapoREP
      R+38.4
      2014
      Jim RischREP
      R+30.7
      2010
      Michael D CrapoREP
      R+46.3
      2008
      Jim RischREP
      R+23.6
      2004
      Michael D CrapoREP
      R+99.2
      2002
      Larry E CraigREP
      R+32.6
      1998
      Michael D CrapoREP
      R+41.1
      1996
      Larry E CraigREP
      R+17.1
      1992
      Dirk KempthorneREP
      R+13.1
      1990
      Larry E CraigREP
      R+22.6
      1986
      Steven D SymmsREP
      R+3.1
      1984
      James A. McClureREP
      R+46.2
      1980
      Steven D SymmsREP
      R+1.0
      View all US Senate history for Idaho →

      Candidates

      Dwight JensenDEM
      Record0W-2L
      Avg MarginR+38.1
      Career1978-1978
      US Senate / State Senate
      Full profile →
      James A. McClureREP
      Record3W-0L
      Avg MarginR+29.9
      Career1972-1984
      US Senate
      Full profile →

      Also in Idaho, 1978

      US House2 contests →Governor1 contest →
      ← All 1978 US Senate races1978 overviewIdaho profileAll elections