DENVER — Progressive challengers defeated several establishment-backed candidates in Democratic primaries across multiple states this week, including notable upsets in races with implications for education policy.
In Colorado, 29-year-old Democratic socialist Melat Kiros unseated longtime U.S. Rep. Diana DeGette in the 1st Congressional District primary by nearly 10 percentage points, according to preliminary results and PBS NewsHour reporting. Kiros campaigned on priorities including universal childcare and broader access to public education services.
The victories add to a pattern of progressive gains in 2026 primaries. In New York, progressive candidates backed by figures such as Mayor Zohran Mamdani defeated incumbents in recent contests, some of whom had records tied to education funding debates.
State-level education oversight races also reflected shifts. In Texas, several candidates advanced in State Board of Education primaries, with some challengers emphasizing curriculum changes and public school investment. California’s superintendent of public instruction primary saw Chino Valley school board member Sonja Shaw and San Diego Unified school board president Richard Barrera advance, both with contrasting views on education issues including student protections and school governance.
Analysts noted higher-than-average incumbent losses in primaries this cycle. Ballotpedia reported that dozens of Democratic incumbents lost renomination across states that had held primaries, though specific education board defeats remained limited compared to legislative races.
In Pennsylvania, Working Families Party-endorsed candidates in legislative primaries, including education advocates, highlighted public school funding and childcare as central platforms.
Democratic Party officials and establishment figures have downplayed the upsets as isolated to strongly progressive districts. Sen. John Hickenlooper of Colorado fended off a progressive challenge from state Sen. Julie Gonzales in the Senate primary.
Progressive organizers described the results as evidence of voter demand for bolder approaches on issues such as education equity and affordability. “We are taking back our party and our country,” one victorious candidate said in remarks following a win, per PBS reporting.
DeGette, who had represented her district for nearly three decades and cited leadership on health care and education access, conceded the race. Final certification of results remains pending in several contests.
The primary outcomes come amid ongoing national debates over K-12 funding, curriculum standards, and school board influence. Turnout details and full vote tallies were still being finalized as of Friday. General election matchups for November will determine the broader impact.
