Insurgents Are Revitalizing the Democratic Party

Progressive Candidates Win Several Democratic Primaries in 2026

Several candidates aligned with progressive positions defeated incumbents or prevailed in crowded fields during Democratic primaries held in the spring and summer of 2026. The results occurred in multiple states and drew attention from party officials and media outlets ahead of the midterm elections.

In New York, three candidates—Claire Valdez and Darializa Avila Chevalier, both members of the Democratic Socialists of America, and Brad Lander—won their respective primaries in June. In Colorado, 29-year-old DSA member Melat Kiros defeated a 15-term incumbent in a House primary. Colorado Attorney General Phil Weiser won the Democratic primary for governor after trailing by 30 points in earlier polling, according to campaign statements and media reports at the time.

In New Jersey, Analilia Mejia, a former aide to Senator Bernie Sanders, won a special election in February for a suburban House seat and later prevailed in the general election. Mejia was the only candidate in her primary to describe Israel’s military operations in Gaza as genocide. She stated after the primary that the contest was “about right and wrong” rather than a left-right division.

These outcomes took place against a backdrop of Democratic losses in the 2024 elections, which party analysts attributed in part to lower turnout among core supporters and limited engagement with some potential voters. A Washington Post/Ipsos poll conducted in July 2026 found Democrats holding a 10-point enthusiasm advantage over Republicans, an eight-point improvement from 2018 levels. The same poll indicated that more than seven in 10 Democrats viewed voting in 2026 as more important than in prior midterms, compared with just over half of Republicans.

Some Democratic leaders and affiliated organizations expressed concern about the direction signaled by the primary results. Former Clinton administration commerce secretary William Daley, whose preferred Senate candidate in Illinois lost in March, stated that a segment of the party was attempting to take control. The think tank Third Way described the DSA’s approach as a movement requiring opposition rather than accommodation. The New York Post published articles warning of negative electoral consequences from what it termed a socialist influence.

Other Democratic candidates who won primaries or advanced in their races included Chris Rabb in Pennsylvania, Peggy Flanagan in Minnesota, Troy Jackson in Maine, and Sherrod Brown in Ohio. These individuals campaigned on platforms that included higher taxes on high earners, expanded public health coverage, and changes to foreign policy. Historical examples cited by supporters include Senator Bernie Sanders’s victories in Vermont and Representative Mark Pocan’s wins across different district types in Wisconsin.

Polling analysis from the Center for Working-Class Politics has indicated that emphasis on certain economic policies can affect turnout among working-class voters, with some data showing shifts in attitudes on both economic and social issues over recent decades. Party strategists continue to debate whether these primary results represent a durable shift or localized outcomes dependent on specific districts and candidate profiles.

The July House vote by 103 Democrats, including former Speaker Nancy Pelosi, to end U.S. aid to Israel was described by Politico as reflecting internal party divisions. Primary turnout increased in several states compared with previous cycles, though overall participation rates varied by location.

Democratic leaders face decisions on whether to unify around nominees who emerged from these contests or to support alternative approaches in the general election. The results have prompted discussion within the party about messaging, candidate recruitment, and policy priorities heading into November.