In the poll by Slingshot Strategies, first reported by the New York Post, Mamdani has 36 percent of the vote compared to former New York Governor Andrew Cuomo 's 27 percent and current New York City Mayor Eric Adams' 14 percent. Republican candidate Curtis Sliwa landed 16 percent of the vote and independent candidate Jim Walden received 2 percent.

The United Federation of Teachers’ endorsement was the latest major labor union to coalesce around the Democratic mayoral nominee.