Adam Hamilton defeats Roger Marshall in Kansas Senate raceDemocrat Adam Hamilton unseated Republican Senator Roger Marshall in Kansas, becoming the first Democrat to win a Senate seat in the state since 1932 in a major upset.Nov 3, 2026·2 sourcesDemocrats’ red-state campaign pushUS SenateDemocratic PartyU.S. election resultsElectionsCampaign financeU.S. House of RepresentativesUS midterm electionsSenate racesRepublican Party2026 U.S. midterm elections00