Democratic socialist Melat Kiros defeats long-time incumbent in Colorado primary

Democratic socialist Melat Kiros won the June Colorado Democratic primary, beating 15-term Rep. Diana DeGette by a double-digit margin, signaling a growing leftward shift within the state party.

In Colorado’s June Democratic primary, newcomer Melat Kiros, identified with the Democratic Socialists of America, unseated 15-term incumbent Rep. Diana DeGette by a 13-point margin, a result that surprised many veteran strategists. Kiros’ campaign emphasized universal health care, affordable housing, and utility public ownership, and relied on an extensive grassroots operation that knocked on more than 100,000 doors and reached half a million voters by phone.

Party veterans, including former Denver city attorney Doug Friednash, view the win as part of a broader DSA wave that could become a “cancer” for the Democratic Party if not addressed. Centrist organization Third Way announced plans for a $15 million campaign to push back against the socialist faction, while libertarian think-tank Independence Institute warned the shift threatens Colorado’s pro-business reputation. Kiros will face Republican accountant Christy Peterson in the November 3 general election, which analysts expect her to win given the district’s strong Democratic lean.