Posts on Wednesday, July 1, 2026

After two Mamdani-backed, card-carrying members of the Democratic Socialists of America (DSA) political party won their respective House primaries last Tuesday in New York, all eyes turned to Colorado's 1st Congressional District Democrat primary, which featured longtime incumbent Rep. Diana DeGette facing off against DSA member Melat Kiros. The primary was Tuesday night, and, with 78 percent reporting as of this writing, Decision Desk HQ has called it for Kiros in what may be the biggest primary upset for an incumbent Democrat House member this midterm election cycle. DeGette, 68, is Colorado's longest-serving member of Congress, having been in office since 1997 in a district drawn for Democrat victories.

Insurgent socialist candidate Melat Kiros defeated longtime Rep. Diana DeGette (D-Colo.) Tuesday in Colorado’s 1st District House primary, marking the latest blow to the establishment wing of the Democratic Party. Kiros came out on top of the incumbent, 49.3% to 43.5%, by the time the Associated Press called the race late Tuesday. Kiros’s win in the solidly blue district follows a string of victories by socialist and far-left candidates over incumbent and establishment-backed Democrats in New York in June, and it’s expected to tilt the political makeup of the House Democratic caucus even further to the left after the midterm elections.