Political upstart Zohran Mamdani secured another key endorsement Wednesday, earning the support of the United Federation of Teachers, New York City’s most powerful teachers’ union, a day after the president of the United States threatened to overtake the five boroughs should the 33-year-old be elected mayor.

In a link on his website, Mamdani says his administration, if elected, would focus on getting ICE out of New York City facilities.