Democratic Socialists Are Winning Primaries — And Both Parties Are Panicking for Completely Different Reasons

A wave of progressive and democratic socialist candidates swept through Democratic primaries in spring and early summer 2026, reshaping the party’s congressional bench ahead of November’s midterm elections. Darializa Avila Chevalier, a member of the Democratic Socialists of America, defeated five-term U.S. Rep. Adriano Espaillat in New York, while Melat Kiros, a DSA-backed attorney, defeated longtime Rep. Diana DeGette in Colorado’s 1st Congressional District [1, 4]. Justice Democrats, a progressive primary group, endorsed 15 Democratic challengers this cycle — compared to none in the 2022 midterms — and eight have won their primaries so far [1]. More than 20 progressives backed by Track AIPAC, a group critical of U.S. military aid to Israel, have also won Democratic primaries [1]. The surge has coincided with a historic overall rise in Democratic primary turnout: Texas recorded more than 2.2 million Democratic primary votes, the highest since 1970; Illinois saw a 34.7 percent increase versus the 2022 Senate primary; and North Carolina recorded 800,000 Democratic primary votes against 626,000 in Republican primaries [5]. Most progressive wins have come in safe, heavily urban Democratic districts — though competitive seats in Maine, California, and Colorado are also in play [1, 2]. A CNN analysis published July 3 found that 57 percent of all primary votes nationally were cast in Democratic primaries, up 10 points from comparable states in 2022 [5].

Why It Sucks:

Progressive Democrats / DSA Supporters

• Winning is treated as a problem rather than a mandate. DSA supporters argue that beating five-term incumbents in open democratic primaries — with higher turnout than in any recent cycle — is exactly how a political party is supposed to update its platform in response to its voters; characterizing these victories as a “problem” reflects party leadership’s preference for incumbency over accountability [2, 4].
• The cost-of-living crisis created the demand; the candidates followed it. Progressive primary winners largely ran on Medicare for All, student debt relief, rent control, and opposition to military aid to Israel — positions with majority support in repeated Democratic primary exit polls; the argument that these positions are “too far left” ignores that they are apparently popular enough to beat entrenched incumbents [1, 2].
• Justice Democrats have a better recent track record than given credit for. The same organization that recruited Alexandria Ocasio-Cortez in 2018 has now gone 8-for-15 in its 2026 endorsements; critics who cite general-election risk are making a theoretical argument against candidates who have actually won votes, in contests that actually happened [1, 3].

Moderate Democrats / Party Strategists

• Winning New York City primaries does not flip Michigan swing seats. Democratic strategists note that virtually every DSA and Justice Democrats win has come in districts that vote 70-plus percent Democratic in general elections; the primary energy generated in Brooklyn and Denver does not automatically transfer to the competitive suburban districts in Phoenix, Atlanta, and Philadelphia where the actual House majority will be decided [1, 3].
• The “socialist” brand is a liability in districts Democrats need to win. Internal party polling in swing districts consistently shows that voters in competitive races respond negatively to “socialist” branding even when they support individual policies like lower drug prices and expanded healthcare — a distinction that campaign ads do not make, and that Republican opposition researchers will spend heavily to collapse [3, 5].
• Losing Espaillat and DeGette cost the party institutional experience. Both defeated incumbents had built significant committee seniority, donor networks, and constituent service operations over multiple terms; replacing them with first-time candidates — however enthusiastic their supporters — resets years of accumulated legislative leverage in a body where seniority shapes what a member can actually accomplish [1, 4].

Republicans

• Democrats are doing the opposition research for free. Republican strategists note that every DSA primary win produces a new general-election opponent who has already been forced to defend positions like defunding police, opposing Israel aid, and supporting democratic socialism on the record — in their own words, in publicly archived debate footage [3, 5].
• The Trump “communist” framing just got handed a gift basket of evidence. Republicans argue that Trump’s July 4 speeches labeling Democrats communists — which were immediately criticized as hyperbole — now have named, elected primary winners to attach to; the attack line that previously relied on inference can now cite Avila Chevalier and Kiros by name and affiliation in campaign ads [1, 3].
• Progressive turnout in safe seats inflates the overall Democratic enthusiasm numbers. Republicans argue that the 57-percent Democratic primary share is misleading because it is driven largely by massive turnout in non-competitive urban districts; the real test is whether that energy shows up in competitive suburban districts, which have shown no comparable progressive surge in primary results [3, 5].

Sources & Citations:

[1] U.S. News & World Report / Reuters: Progressive surge complicates Democrats’ midterms focus on prices
[2] Notus: Democratic Socialists of America Are Seeing Surge in Membership
[3] Newsweek: Could Progressive Democrats Be the Best Thing to Happen to the GOP in 2026?
[4] The Intercept: Socialist Momentum Grows as Melat Kiros Wins in Denver
[5] CNN: Turnout in this year’s primary elections clearly favors Democrats so far