Senate Democratic leader Chuck Schumer called on fellow Democrats on Thursday to filibuster the confirmation of Supreme Court nominee Neil Gorsuch, which would require 60 votes to overcome.

“I have concluded that I cannot support Neil Gorsuch’s nomination,” the New York Democrat said. “My vote will be no and I urge my colleagues to do the same.”

His opposition could force Republicans, who control 52 seats in the Senate, to either round up eight Democratic votes or change the rules — the “nuclear option” — to eliminate the 60-vote requirement for confirmation.

During a speech on the Senate floor, Schumer dared them to change the rules.

“To my Republican friends who think that if Judge Gorsuch fails to reach 60 votes, we ought to change the rules, I say if this nominee cannot earn 60 votes — a bar met by each of President Obama’s nominees and George Bush’s last two nominees — the answer isn’t to change the rules. It is to change the nominee,” he said.

Schumer said Gorsuch favors the “powerful over the weak” and would not check President Trump’s agenda.

Democrats are also frustrated because they believe Senate Republicans failed to give Obama’s selection of Merrick Garland to fill the seat left vacant after Justice Antonin Scalia’s death in February 2016 the courtesy of a hearing.

Senate Majority Leader Mitch McConnell pledged to get Gorsuch’s nomination through the Senate.

“Gorsuch will be confirmed. I just can’t tell you exactly how that will happen yet,” McConnell told the Associated Press this week.

The Senate Judiciary Committee is expected to vote April 3, with a full Senate vote coming before a two-week break that begins April 10.