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Mamdani Strengthens Lead in NYC Mayoral Race With Warren’s Backing as Donors Mobilize

The Democratic Party’s split over his socialist policies is matched by billionaire-funded efforts to derail his candidacy

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Graffiti, including Stars of David, is seen on posters of Zohran Mamdani, Democratic candidate for mayor of New York, on July 22, 2025 in New York. (Charly Triballeau/AFP via Getty Images/Courtesy)

Overview

  • Sen. Elizabeth Warren campaigned with Mamdani Monday, spotlighting his affordability agenda on housing, childcare and wealth taxes.
  • Key figures such as Sen. Cory Booker, Chuck Schumer and Hakeem Jeffries have declined to endorse him, highlighting establishment wariness of his democratic socialist brand.
  • Billionaire investors including Bill Ackman and Republican operatives like Vivek Ramaswamy have pledged hundreds of millions to defeat Mamdani, warning his proposals could undermine economic stability.
  • New York’s ranked-choice voting system has turned the general election into a four-way contest, with independent bids by Andrew Cuomo and Eric Adams fragmenting the anti-socialist vote.
  • Despite intense opposition spending, recent polls show Mamdani leading the field, driven by grassroots momentum and high-profile progressive support.