Socialism goes west as DSA-backed challenger ousts longtime Democrat
Melat Kiros' support from Bernie Sanders, AOC and Hasan Piker proves enough to defeat Rep. Diana DeGette
By Adam Pack Fox News
Published July 1, 2026 12:05am EDT | Updated July 1, 2026 12:27am EDT
Rep. Diana DeGette, D-Colo., a 30-year incumbent, lost to a Democratic Socialists of America (DSA)-backed challenger in a high-profile primary on Tuesday evening.
Melat Kiros, a 29-year-old socialist, defeated DeGette in a Democratic primary for a deep-blue House seat anchored in Denver, according to The Associated Press, scoring a major victory for the socialist left on Tuesday evening.
The DSA had been aiming to cast DeGette’s loss as evidence of its growing momentum after a slate of socialist candidates won Democratic primaries in New York City last week.
"Today, the East Coast, next week the Mountain West," the DSA wrote in a social media post last week.
If elected in November, Kiros, who was born in Ethiopia, will likely join the ranks of the far-left group known as the Squad and become one of a handful of the House chamber's outspoken socialists.
The millennial challenger was endorsed by Sen. Bernie Sanders, I-Vt., Rep. Alexandria Ocasio-Cortez, D-N.Y., and the anti-incumbent leftist organization Justice Democrats. Controversial socialist streamer Hasan Piker, who has said Hamas is "a thousand times better" than Israel and praised the Chinese Communist Party, also backed Kiros’ insurgent primary run.
DeGette, a member of the Congressional Progressive Caucus who supports abolishing Immigration and Customs Enforcement (ICE), sought to win a 16th House term by flexing her leftist bona fides. She argued her seniority on an influential House committee would allow her to push for Medicare-for-All legislation — a longtime priority of the party’s far-left flank.
DeGette, who was endorsed by former CPC Chairwoman Pramila Jayapal, D-Wash., also spotlighted her experience as an impeachment manager during Trump’s second impeachment trial in 2021.
Though DeGette and Kiros shared few policy disagreements, they diverged sharply over Israel and antisemitism. Kiros also sharply criticized DeGette for accepting corporate PAC contributions.
Kiros, a PhD student and lawyer, was fired from a New York firm in 2023 after publishing an open letter, arguing that pro-Palestinian student protesters calling for the elimination of Israel were not antisemitic and appearing to defend Hamas.
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