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

In an extraordinary about-face, back-of-the-pack mayoral candidate Jessica Ramos is endorsing her front-running rival Andrew Cuomo — just weeks after questioning his “mental acuity”

In the race for New York City mayor, Democratic candidate Jessica Ramos, a state senator from Queens, threw her support to Andrew Cuomo Friday.