What’s Next for Democratic Socialists? It Could Be Denver.

A longtime Democratic progressive incumbent is in danger of losing next week to a democratic socialist with momentum.

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“Denver, Colorado, is not New York City,” Rep. Diana DeGette said. Tom Williams/AP

DENVER — The growing wave of anti-incumbent energy could crash into Denver on Tuesday.

Rep. Diana DeGette (D-Colorado) is staring down one of the toughest primary challenges in her 30-year congressional career from 29-year-old attorney and democratic socialist Melat Kiros.

The ground was already shifting here even before Democratic Socialists of America insurgents rolled through New York’s primaries this week. Last week, Kiros picked up an endorsement from Sen. Bernie Sanders, while a trio of pro-DeGette super PACs has pumped more than $1.3 million — and continues to add more — into ads attacking Kiros, according to the ad-tracking firm AdImpact. This week, pro-DeGette ads are outnumbering Kiros’ by nearly a 3-to-1 margin.