The Margin of the Popular Vote Victory in U.S. House Races, Ranked by Size, 1942-2026

Democrats look to have secured the second largest margin in the U.S. House vote in the past 112 years, eclipsed only by the 1974 midterm election.

2026 data as of November 8, 2026. Blue bars indicate a Democratic advantage and red bars indicate a Republican advantage.
Chart: Oscar BerrySource: Ballotpedia and Cook Political Report