President Donald Trump and New York City mayoral candidate Zohran Mamdani have traded barbs throughout the 2025 campaign. (Andrew Harnik/Getty Images; Hiroko Masuike/AFP via Getty Images)
The president's post also marked his latest attempt to guide New Yorkers at the polls.
"A vote for Curtis Sliwa (who looks much better without the beret!) is a vote for Mamdani," Trump added.
ANDREW CUOMO WARNS TRUMP WILL 'TAKE OVER' NEW YORK CITY IF MAMDANI WINS
New York City Democratic mayoral nominee Zohran Mamdani delivers remarks in the Bronx, New York City, on Friday, Oct. 24, 2025. (Fox News Digital/Deirdre Heavey)
Mamdani also responded to Elon Musk supporting Cuomo on Monday, saying "the reason that the President of the United States of America, the reason that one of the wealthiest men in the world are both trying to get involved at the last minute, is that they know we will accomplish everything we have run on."
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The socialist mayoral candidate spoke out about Trump's threat to withhold federal funding from the city, and labeled it unlawful.
"It is not the law," Mamdani told reporters. "And too often we treat everything that comes out of Donald Trump's mouth as if it is already legal, just by virtue of who is saying it."
Emma Bussey is a breaking news writer for Fox News Digital. Before joining Fox, she worked at The Telegraph with the U.S. overnight team, across desks including foreign, politics, news, sport and culture.
https://www.foxnews.com/politics/trump-threatens-cut-federal-funding-communist-mamdani-wins-nyc-mayor-race-against-cuomo