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      Data: MIT Election Lab, VEST, Census Bureau
      Home/Elections/1986/US House/Maryland/MD-01
      1986·US House·Maryland·District profile →

      Maryland District 1 US House

      Winner
      DEM
      Roy Dyson
      66.8%88,113 votes
      Runner-up
      REP
      Harlan C Williams
      33.2%43,764 votes
      Margin
      D+33.6
      131,877 total votes
      2 candidates131,877 total votes
      CandidatePartyVotes ▼%Vote Share
      Roy DysonDEM✓
      		DEM88,11366.8%
      Harlan C WilliamsREP
      		REP43,76433.2%

      Presidential Vote by District

      5 elections · 2008–2024 · 118th Congress boundaries
      Latest (2024)R+16.8
      Shift vs 2020↓ R+2.3
      R+20EvenD+2020082012201620202024
      YearDem %Rep %MarginTurnout
      202440.2%57.0%R+16.8427,049
      202041.7%56.3%R+14.5410,539
      201635.6%58.6%R+23.0376,493
      201241.3%58.7%R+17.4352,051
      200840.9%57.3%R+16.5354,636

      Seat History

      US House in Maryland

      2024
      Andrew P HarrisREP
      R+22.0
      2022
      Andrew P HarrisREP
      R+11.3
      Redistricted
      2020
      Andrew P HarrisREP
      R+27.1
      2018
      Andrew P HarrisREP
      R+21.9
      2016
      Andrew P HarrisREP
      R+38.4
      2014
      Andrew P HarrisREP
      R+40.9
      2012
      Andrew P HarrisREP
      R+31.5
      Redistricted
      2010
      Andrew P HarrisREP
      R+12.1
      2008
      Frank M Kratovil Jr.DEM
      D+0.8
      2006
      Wayne T GilchrestREP
      R+37.7
      2004
      Wayne T GilchrestREP
      R+51.8
      2002
      Wayne T GilchrestREP
      R+53.6
      Redistricted
      2000
      Wayne T GilchrestREP
      R+28.9
      1998
      Wayne T GilchrestREP
      R+38.4
      1996
      Wayne T GilchrestREP
      R+23.1
      View all US House history for Maryland →

      Candidates

      Roy DysonDEM
      Record9W-4L
      Avg MarginD+11.4
      Career1976-2014
      State Senate / US House
      Full profile →
      Harlan C WilliamsREP
      Record0W-2L
      Avg Margin---
      Career1984-1986
      US House
      Full profile →

      Also in Maryland, 1986

      US Senate1 contest →Governor1 contest →
      ← All 1986 US House races1986 overviewMaryland profileAll elections