Mamdani won a record-setting primary victory, and unions, grassroots Democratic groups, and savvy elected officials are rushing to back him. Now it’s the establishment’s turn.

Mr. Mamdani, a state assemblyman and the Democratic nominee for mayor of New York City, is taking on a small handful of more experienced campaign hands.

Many found Fetterman's comments to be rich, coming from someone whose positions have been inching towards the center since he was elected in 2022.