Democratic Socialists Win New York Primaries, Prompting Tensions Within the Democratic Party

On June 24, 2026, candidates backed by the Democratic Socialists of America won New York primary elections. The three congressional candidates endorsed by Mayor Zohran Mamdani—Darializa Avila Chevalier, Brad Lander, and Claire Valdez—secured victories, and nearly all DSA down-ballot candidates also won. In contrast, candidates supported by House Minority Leader Hakeem Jeffries were defeated. The results were celebrated at a Brooklyn election party where attendees chanted a slogan urging Jeffries to become speaker.

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Jeffries, who is positioning for the speakership if Democrats regain the chamber, represents the party’s centrist establishment. The New York outcome follows similar primary victories for progressive candidates in other states: Graham Platner lost to Gov. Janet Mills in Maine’s Senate primary; Abdul El-Sayed leads in Michigan; Chris Rabb won the Philadelphia nomination; and Adam Hamawy prevailed in a 12-way New Jersey primary. These races illustrate a growing left-wing momentum that challenges the traditional Democratic machine.

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The victories signal a potential shift in the Democratic Party’s policy agenda toward Medicare for All, stronger criticism of Israel, and other progressive priorities. Continued left wins could force centrist leaders to adjust strategies before the midterm elections and the forthcoming speaker selection.

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Jeffries told reporters that he and Mayor Mamdani had agreed to strongly disagree and that a handful of primaries would not reshape the party’s identity. Former DNC chair Jaime Harrison posted that anyone who dislikes the party should not seek its nomination. Jeffries’s operation has referred to left-wing challenges as “Team Gentrification.”

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Establishment Democrats have dismissed the left surge as a threat to party unity. Harrison’s social-media comment urges dissenters to refrain from seeking nominations, while centrist commentators have described streamer Hasan Piker’s involvement as “controversial.”

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The source does not give exact vote totals for the New York primaries, leaving the scale of the victories unspecified. Detailed results for the broader DSA down-ballot slate are also missing.

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• “You’re next! You’re next!” — crowd at Brooklyn election party

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• “agreed to strongly disagree” — Hakeem Jeffries, House Minority Leader

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• “a handful of primaries that go in one direction or the other in a given state or two aren’t going to reshape who we are as House Democrats.” — Hakeem Jeffries, House Minority Leader

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• “If you hate the Democratic Party, then please don’t run for our nomination,” — Jaime Harrison, former DNC chair

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Jeffries is expected to run for speaker in the upcoming elections. Progressive candidates will keep contesting primaries, and internal debates over Israel and health-care policy are likely to intensify within the Democratic Party.

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