Melat Kiros Defeats 15-term Incumbent In Colorado House Primary

Melat Kiros, a democratic socialist, unseated longtime U.S. Rep. Diana DeGette in Colorado's Democratic primary on Tuesday, delivering one of the biggest upsets of the 2026 primary season.

Kiros' victory comes just a week after New York voters ousted two Democratic incumbents and replaced another retiring member of Congress, underscoring the growing strength of the party's progressive wing.

At 29, Kiros is heavily favored to win the general election in the solidly Democratic seat.