NEWS — Published July 1,2026 · By Roe Baynes · 4 Min Read
On June 30, 29-year-old democratic socialist Melat Kiros defeated 15-term Rep. Diana DeGette in Colorado’s 1st Congressional District Democratic primary, the Associated Press projected, extending a wave of insurgent-left victories that began a week earlier in New York. It was the third sitting House Democrat toppled by the party’s socialist wing in seven days — and the first outside the coasts.
The AP called the race at 10:03 p.m., with Kiros leading DeGette by just under six points. In a Denver-based district that hasn’t sent a Republican to Congress in decades, the primary was effectively the whole contest.
The Race
Kiros is a political newcomer — a Ph.D. student and former attorney who immigrated from Ethiopia as a baby and had never before run for office. She entered the race last year as a long shot against an institution: DeGette has represented Denver since 1996, the year before Kiros was born.
The challenge caught fire anyway. Kiros was endorsed by the Democratic Socialists of America, Justice Democrats, and Sen. Bernie Sanders, and built her campaign on economic populism — universal healthcare, getting corporate money out of politics — while hammering DeGette over donations from defense, energy, and pharmaceutical interests. By election night she had turned a viral online following into an army of volunteers who, her campaign said, knocked on some 100,000 doors. She finished with roughly 49% to DeGette’s 44%; University of Colorado Regent Wanda James trailed at about 7%.
Kiros ran on the movement’s left flank, and her platform and past statements drew fire during the race: she has called for abolishing Immigration and Customs Enforcement and ending U.S. military aid to Israel, and she has described Israel’s war in Gaza as a genocide — positions her opponents used to cast her as too far outside the mainstream.
If Kiros wins the safely Democratic seat in November, as expected, she would become the first Gen Z woman elected to Congress and only the second Gen Zer overall, joining Florida’s Maxwell Frost. DeGette becomes the seventh House incumbent to lose renomination this cycle.
This Isn’t Isolated
Kiros’s win did not happen in a vacuum. It came exactly one week after three candidates backed by New York City Mayor Zohran Mamdani and the DSA swept their primaries, ousting two House incumbents in a single night. (I covered that result here.) Kiros’s own campaign credited a surge of national enthusiasm and out-of-state volunteers in the days after New York, saying supporters completed hundreds of thousands of calls over the final weekend.
Three incumbents in seven days is not a coincidence. It’s a movement — an organized, well-funded insurgent left that is systematically challenging the Democratic establishment in safe blue districts and winning. The candidates share endorsers, share volunteers, and share a message: that the party has grown too comfortable, too corporate, and too cautious.
The Moderates Push Back — But Don’t Leave
The socialist wing’s momentum is forcing a reckoning on the party’s other flank, where moderates are increasingly vocal — and increasingly frustrated.
Sen. John Fetterman of Pennsylvania has emerged as one of the loudest internal critics, warning about the rise of what he’s called the “dirtbag left” and refusing to adopt the sharper rhetoric of his party’s activists. “If you want a Democrat that’s going to call people Nazis or fascists,” he has said, “I’m not going to be that guy.” Fetterman has broken with Democrats on Israel, on immigration funding, and on a recent Iran war-powers vote, and the breaks have fueled months of speculation that he might leave the party altogether.
That speculation intensified this week when former Sen. Joe Manchin — who left the Democratic Party to become an independent in 2024 — publicly urged Fetterman to do the same. “Trust me, set yourself free and become an independent,” Manchin said. “It’s liberating.”
Fetterman, for his part, has repeatedly and firmly shut the door on leaving. “I’m a Democrat, and I’m staying one,” he has said, and he reiterated the point in a Washington Post op-ed titled plainly: “I’m not leaving the Democratic Party.” His stance captures the moderates’ dilemma — deeply uneasy with the direction of the party, but unwilling to abandon it.
They’re not without organization. Days after the New York results, thirteen moderate House Democrats and candidates, led by Rep. Tom Suozzi of New York, launched a “Promise to America” pledge declaring themselves “capitalist, not socialist.” The centrists are trying to build a counterweight. So far, the socialists are the ones winning primaries.
What It Means
The picture emerging from June is a party pulling hard in two directions at once. Its establishment wing is losing primaries it used to win in its sleep. Its moderate wing is agitating loudly but staying put. And its socialist wing is converting energy into actual seats — three of them, in one week.
That fight won’t be settled by November. But it’s no longer a fight over messaging or tone. It’s a fight over who the Democratic Party is going to be, and right now the insurgents are setting the pace.
More From Baynes World
Socialist Candidates Sweep New York Primaries, Ousting Two House Incumbents — the New York results that started the wave: the three races, the numbers, and the Democratic split behind them.
Communism Is the Greatest Threat to America — And I Learned That From My Family — the deeper analysis: why this trend is the most serious threat the country faces, and what my own family’s flight from communist Cuba taught me about it.
