The mayor of New York should refuse to pay for Donald Trump’s security, the top Democrat in Washington suggested in an interview on Friday.

“[Mayor Bill de Blasio] ought to tell the Congress if we don’t pay for it, New York City cops aren’t guarding it, and let the Feds put more people in,” Senator Chuck Schumer said in an interview with BuzzFeed News. “That’s what I think he should do.”

It was a typically confrontational suggestion from the New York senator and Senate minority leader, who is ex officio the leader of the official resistance to Donald Trump.

Speaking in his ornate office in the Capitol building Friday as Washington assesses Trump’s first 100 days, Schumer had nothing good to say about his former donor and constituent. The Trump Administration has been “a huge disappointment to most Americans” and demonstrated “sheer incompetence,” he said.