NYT > U.S. News The Democratic Incumbents Most at Risk of Losing to Progressive Primary Challengers in 2026 Par :Tim Balk 1 juillet 2026 à 13:46 A wave of outsider fervor has already knocked out a number of incumbents in primary races. Several more face spirited opposition. © Rebecca Slezak/Associated PressMelat Kiros, a 29-year-old democratic socialist, defeated Representative Diana DeGette of Colorado, a 68-year-old incumbent running for a 16th term on Tuesday.