New York's Democratic Primaries Test Party Direction, Ideology, and Israel Stances

Darializa Avila Chevalier—one of Mayor Zohran Mamdani’s endorsed challengers—has been tied to a series of controversial posts, including one stating “Israel doesn’t exist,” along with anti-police rhetoric (calling for abolishing the police) and posts described as “anti-American and pro-Russian,” according to Jewish Insider.
A Democratic Socialists of America canvassing session supporting Claire Valdez included explicit messaging guidelines for volunteers: “Here are the rules. No cop knocks. We don’t want anyone thinking ICE is at their front door,” a lead canvasser told fellow volunteers, according to the Christian Science Monitor.
In the race for Brooklyn and western Queens’ open seat (NY-07), Mamdani-aligned candidate Claire Valdez is running for the seat of retiring 17-term Rep. Nydia Velazquez—but Velazquez has endorsed a different candidate, setting up an establishment-vs-Mamdani intra-party showdown, the Monitor reported.
Progressive presidential figure Bernie Sanders appeared alongside Mamdani’s slate for a get-out-the-vote rally hours after a Knicks-related ticker-tape parade, underscoring the national-profile nature of the effort, according to EuropeSays.
The contest to replace Rep. Jerrold Nadler (NY-12) is not just Lasher vs. Bores and George Conway III; it also features a wildcard campaign from Jack Schlossberg, described as a youthful social media influencer whose grandfather was President John F. Kennedy, EuropeSays reported.
New York City voters head to the polls Tuesday for some of the most closely watched Democratic House primaries in years. The races pit Mayor Zohran Mamdani's far-left challengers against establishment Democrats — a battle that could signal where the party is heading nationally. Early voting turnout has been low, raising questions about whether Mamdani's allies can pull off the upsets they need, according to NY Daily News.
Mamdani, inaugurated just six months ago as New York City's first Muslim and South Asian mayor, is backing a slate of three House candidates: Brad Lander, Claire Valdez, and Darializa Avila Chevalier. Senator Bernie Sanders joined Mamdani and the candidates for a get-out-the-vote rally on June 19 — the day after a million-person Knicks championship parade through Lower Manhattan, according to EuropeSays.
Darializa Avila Chevalier, Mamdani's pick in NY-13, is under fire for past social media posts. One post stated "Israel doesn't exist." Others included calls to abolish the police and messages described as "anti-American and pro-Russian," according to Jewish Insider. When asked to disavow the posts, Chevalier said, "My understanding of how to approach the systems has grown" — but stopped short of a full retraction.
Democratic strategist Chris Coffey told Jewish Insider that the "red lines" on candidate behavior have shifted. Views once considered deal-breakers may no longer cost a candidate a race in today's anti-establishment climate. Representative Adriano Espaillat pushed back hard, slamming Chevalier for rhetoric that "feted Israeli deaths." The races have effectively become a proxy fight over the Democratic Party's stance on Israel.
In NY-07, covering Brooklyn and western Queens, 17-term incumbent Nydia Velázquez is retiring after more than three decades in Congress. Mamdani-backed candidate Claire Valdez, a sculptor and state assemblywoman, is running for the open seat. Valdez's campaign has drawn attention for its canvassing rules: volunteers were told, "No cop knocks. We don't want anyone thinking ICE is at their front door," a lead canvasser said, according to Christian Science Monitor.
Velázquez herself endorsed a different candidate — not Valdez — setting up a direct establishment-vs.-insurgent clash inside the district, Christian Science Monitor reported. Democratic Socialists of America volunteers are actively canvassing for Valdez. Outside groups have pledged $2 million to boost Mamdani's full slate of Lander, Valdez, and Chevalier, according to Jewish Insider.
In Manhattan's NY-12, veteran Rep. Jerrold Nadler announced his retirement in September 2025 after decades in office. Four candidates are now fighting for his seat. Micah Lasher is the establishment pick — a former aide to both Nadler and Michael Bloomberg. Alex Bores, a state assemblyman, has become the target of a $7 million campaign by an AI industry-backed PAC called Leading the Future, funded by OpenAI investors, according to AP News.
George Conway III — the former Republican attorney and prominent Trump critic — switched parties to run as a Democrat. He says, "Our republic is running out of time." Then there is Jack Schlossberg, grandson of President John F. Kennedy and a viral social media figure, who has used short-form videos to mock Trumpism and position himself as a "Camelot" revivalist, according to EuropeSays.
Mamdani won the 2025 mayoral race with 50.78% of the vote, spending $40 million from Wall Street opponents along the way, according to Christian Science Monitor. His allies argue a sweep Tuesday would give him a direct pipeline to Congress — potentially bypassing Governor Kathy Hochul on federal funding for New York City. The challengers' agenda includes aggressive tax reform, housing as a legal right, and a major shift away from U.S. support for Israel.
But low early-vote turnout could be the insurgents' biggest problem. Mamdani's coalition depends on high youth and activist turnout, NY Daily News reported. If establishment candidates hold their ground Tuesday, it would be a signal that the Democratic Party's leftward drift has limits — even in one of the most progressive cities in the country, according to AM New York.
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