New York City’s Democratic primaries tested Mayor Zohran Mamdani’s influence on Tuesday across Manhattan, Brooklyn, Queens, and the Bronx, as his endorsed challengers confronted entrenched figures in congressional and state races. The vote followed a week of final rallies and targeted appeals, including a June 17 event at the Kings Theater with Sen. Bernie Sanders, and capped an early-voting period that drew 172,743 participants across the five boroughs. Last update: June 24, 2026.

The outcome matters because it will shape who represents deep-blue districts likely headed to Washington and signal how far a progressive-left coalition can move the party’s center of gravity in New York. With primaries also taking place in Maryland and Utah, the contests provided a fresh read on national Democratic currents, including foreign policy fissures around Israel, and whether endorsements super PAC spending, and turnout machinery outweighed incumbency and name recognition.

Key New York contests and Mamdani’s endorsements under scrutiny

In New York, attention centered on a Manhattan race to succeed retiring Rep. Jerry Nadler in a district described as the nation’s largest Jewish constituency, while a separate fight pitted challengers against Rep. Dan Goldman. Mayor Mamdani backed three left-wing candidates running against Goldman, Rep. Adriano Espaillat and Brooklyn Borough President Antonio Reynoso aligning his slate with an effort to unseat well-known figures. He previously urged support for Darializa Avila Chevalier in NY-13, Claire Valdez in NY-7, and Brad Lander in NY-10, arguing that their platforms could broaden the Democratic base and re-energize a younger cohort of voters.

The mayor’s push spanned the weekend before Election Day, when he cast an early ballot at the Metropolitan Museum of Art polling site in the 12th congressional district and campaigned across targeted precincts. He kept his vote private but framed the races as a referendum on organizing power versus institutional clout. On June 17 in Brooklyn, he stood alongside Sanders to elevate his slate’s visibility, underlining how high-profile validators have become central to late-breaking momentum in crowded primaries.

Turnout patterns and the progressive–DSA divide

Early-voting totals illustrated uneven engagement: Manhattan led with 67,369 votes, followed by Brooklyn with 54,277 and Queens with 33,143. The Bronx recorded 14,739 early ballots, and Staten Island 3,215, for roughly 4% of registered voters. Older New Yorkers participated at higher rates than younger voters, diverging from the youth wave that aided Mamdani’s mayoral run. That mix put pressure on campaigns built around campus and tenant networks that rely on late surges and door-to-door mobilization.

The primaries also exposed rifts between progressive and democratic socialist currents. Reynoso, opposing Mamdani-backed Claire Valdez in NY-7, stressed experience and coalition-building. “The gap is coalition,” he said, arguing that DSA is “a part of the progressive movement, but it isn’t the only progressive movement.” Rep. Nydia Velázquez a past Mamdani ally, defended her support for Reynoso: “Antonio is a son of this community. He has spent his entire career taking on the machine.” Both cited legislative records on tenant safety and Black maternal health as contrasts with insurgent campaigns.

Strategic endorsements and cross-state stakes

Beyond congressional contests, Mamdani inserted himself into a costly fight on the Upper West Side’s 69th Assembly District where Rabbi Stephanie Ruskay and attorney Eli Northrup faced off with rival left-of-center Jewish factions backing each. The move strained ties with a key Jewish ally and unfolded as the mayor escalated rhetorical attacks on AIPAC drawing criticism from Jewish groups while energizing some progressive activists. The dynamic reflected how New York primaries increasingly serve as proxy battles over Israel policy and the role of outside money.

In Maryland, the race to replace former House Majority Leader Steny Hoyer featured State Del. Adrian Boafo boosted by Hoyer’s endorsement and significant investment from the United Democracy Project AIPAC’s super PAC. UDP emerged as the biggest spender, pouring more than $5.7 million into the race, with operatives describing the contest as “super close” amid many undecided voters. The Maryland outcome was watched in New York political circles for clues about the salience of pro-Israel backing versus progressive mobilization in safe Democratic seats.

Foreign policy backdrop and election-day atmospherics

Foreign policy tensions provided a stark backdrop for New York’s debates. Israeli and Lebanese representatives prepared multiday talks in Washington, continuing direct negotiations days after the U.S. and Iran set up a “deconfliction cell” aimed at halting fighting in Lebanon without Israel’s involvement. Prime Minister Benjamin Netanyahu reiterated Israel’s right to act against Hezbollah in southern Lebanon, and the IDF reported striking armed militants near Israeli troops in the Ali al-Taher Ridge area. The Israeli government signaled concern that U.S.-Iran contacts could limit Israel’s operational freedom.

Meanwhile, U.S. Secretary of State Marco Rubio departed for a three-day trip to the United Arab EmiratesKuwait and Bahrain to discuss a memorandum of understanding with Iran and Gulf transit through the Strait of Hormuz. Those developments echoed through New York campaigns where lines on Israel, Iran, and regional security have become litmus tests. As polls closed, campaigns awaited tallies shaped by borough-level turnout disparities, late-deciding voters, and whether mayoral endorsements could overcome incumbents’ advantages and heavy outside spending.