Melat Kiros, a 29-year-old democratic socialist, defeated 15-term Representative Diana DeGette in the Democratic primary for Colorado’s Denver-based congressional district.
The primary election results mark a significant shift in the district’s political landscape, unseating a longtime incumbent who has held office since 1997.
Kiros campaigned on a platform focused on progressive policies, including universal healthcare, tuition-free public college, and criminal justice reform.
DeGette, who served as a powerful figure in House leadership, struggled to fend off a challenge from the left after facing criticism over her centrist voting record.
The insurgent candidate mobilized younger voters and grassroots activists, leveraging a wave of discontent with established Democratic leadership.
Her victory signals a growing influence of progressive movements within the party, particularly in urban districts that lean heavily Democratic.
Kiros will now face a Republican opponent in the general election, though the district is considered safely Democratic.
The outcome underscores the increasing pressure on moderate Democrats from more left-leaning challengers within the party.
