The decision by Ms. Ramos, a state senator from Queens, is at odds with some of her past criticism of Mr. Cuomo, including comments questioning his “mental acuity.”

As the race for NYC mayor heats up, Andrew Cuomo and fellow candidate New York State Sen. Jessica Ramos are expected to announce a ranked choice voting alliance Friday.

Leaders of the major voting bloc in Brooklyn said Cuomo ‘is the strongest advocate for the community’s values and the needs of New York City’