The latest Yale Youth Poll, conducted with YouGov among 645 voters between June 17 and 23 with a margin of error of ±5 percentage points, shows that in the final round of voting, Mamdani leads Cuomo among voters with income over $100,000 by 20 points, with 60 percent to Cuomo's 40 percent.

The winner will go on to face incumbent Mayor Eric Adams, who is running as an independent, in the fall general election.

New York City voters will head to the polls today to cast ballots in the Democratic mayoral primary. There are 11 candidates on the ballot, including former New York Gov. Andrew Cuomo.