Full Breakdown
Democratic Socialists Score Upset in Colorado, Extending a Nationwide Primary Surge
7/4/2026, 4:38:43 AM
The Upset in Denver’s 1st District
Democratic socialist candidate Melat Kiros, a 29-year-old former attorney, defeated 15-term incumbent Rep. Diana DeGette in the Democratic primary for Colorado’s 1st Congressional District. The race was called with Kiros leading by roughly four points and 78 percent of precincts reported, marking the seventh incumbent loss in this cycle and the first DSA-backed victory in a solidly blue Denver seat.
Momentum Behind the Movement
The Democratic Socialists of America (DSA) have grown from a modest post-Cold-War organization to a national network of more than 100,000 members and over 200 local chapters. Membership in the New York City chapter rose from 5,900 in late 2024 to 14,000 before the recent primaries. After Senator Bernie Sanders’ 2016 and 2020 campaigns, the group secured two congressional seats in 2018 and added three more in 2020. The 2025 mayoral election of Zohran Mamdani, a DSA member, amplified the “Mamdani effect,” prompting coordinated campaigns that helped DSA-aligned candidates win in New York and now Colorado.
Principal Actors
- Melat Kiros – DSA-backed candidate, now poised for the general election.
- Diana DeGette – Long-standing member of the Congressional Progressive Caucus, incumbent since 1997.
- Zohran Mamdani – Mayor of New York City, DSA affiliate, instrumental in candidate recruitment.
- Ashik Siddique – National co-chair of DSA.
- Gustavo Gordillo – Co-chair of DSA’s New York City chapter.
- Jaime Harrison – Former Democratic National Committee chair, vocal critic of the insurgent wing.
Numbers Illustrating the Shift
- DSA claims >100,000 members nationwide; >200 chapters, 20 with >1,000 members.
- In Colorado, Kiros led by ~4 points with 78 percent of precincts reported.
- Pew Research: 32 percent of Democrats “like” democratic socialist leaders; 56 percent are neutral.
- An Economist/YouGov poll found 29 percent of Americans would consider voting for a democratic socialist candidate.
Implications for the Democratic Party
The victories signal a growing appetite for left-wing policy proposals—Medicare for All, higher taxes on the wealthy, and a pro-Palestinian foreign-policy stance—within Democratic primaries. If replicated in swing districts, the surge could reshape candidate selection, pressure establishment figures, and affect the party’s ability to retain a House majority. DSA leaders have already discussed a coordinated 2028 presidential bid, underscoring the strategic significance of the current wins.
Official Statements & Responses
DSA officials emphasized that the wins reflect “a theory of change” resonating with voters and a need to “transform DSA into a factory” of candidates. Kiros framed the victory as a step toward “taking back our party and our country.” DeGette defended her record, asserting she will continue to fight “against Donald Trump” and advance “Medicare for All.” Colorado gubernatorial candidate Phil Weiser highlighted anti-establishment sentiment, while Senator John Hickenlooper warned that the insurgent wave could jeopardize House control.
Criticism & Opposition
Establishment Democrats, including former DNC chair Jaime Harrison, warned that “if you hate the Democratic Party, then please don’t run for our nomination.” Republican strategist Mike Marinella warned that the “socialist takeover” threatens battleground districts and could sink Democratic chances of flipping the House.
Ground-Level Activity
At a Brooklyn garage-turned-venue, DSA volunteers scanned barcodes, signed up for canvassing shifts, and reported that 900 new members joined the city chapter after the New York primary sweep. Door-to-door outreach and a “millions-of-one-on-one conversations” model were credited for Kiros’ surge.
Conflicting Reports & Gaps
Polling on democratic-socialist appeal varies: Pew finds 32 percent of Democrats favorable, while an Economist/YouGov survey shows 29 percent of the general public willing to vote for a socialist. Data on DSA performance in rural or moderate districts remain limited, leaving uncertainty about the movement’s scalability beyond urban strongholds.
Verbatim Quotes
- “If we only elect Zohran, we only elect AOC, our project will have been a failure,” — Gustavo Gordillo, co-chair, DSA NYC
- “We are winning from coast to coast,” — Melat Kiros, candidate
- “The socialist takeover of the Democrat Party is no longer confined to deep-blue strongholds. The radicals are taking over battleground districts, putting must-win seats out of reach for Democrats and sinking their chances of flipping the House.” — Mike Marinella, House Republican campaign spokesperson
- “We have the correct theory of change,” — Ashik Siddique, national co-chair, DSA
- “If you hate the Democratic Party, then please don’t run for our nomination,” — Jaime Harrison, former DNC chair
- “That's why I'm taking on Donald Trump to protect our reproductive freedom, abolish ICE, and pass Medicare for All.” — Diana DeGette, incumbent
Looking Ahead
DSA-backed candidates are slated for primaries in Michigan, Wisconsin, and Florida in the coming weeks. In Colorado, Kiros will face Republican Christie Peterson in November, while the state’s gubernatorial and Senate races will test anti-establishment momentum. Nationally, the movement’s leaders are evaluating a coordinated 2028 presidential effort, positioning the recent primary victories as a foundation for broader electoral ambitions.
