Democratic Sen. Joe Manchin (W.Va.) had strong words for Senate Minority Leader Charles Schumer's (D-N.Y.) efforts to unify the party against President Trump's Supreme Court pick.

Manchin suggested to Politico that Schumer does not have any influence over whether or not he supports Brett Kavanaugh's nomination.

"I'll be 71 years old in August, you're going to whip me? Kiss my you know what," Manchin told Politico, referring to whipping votes among the party caucus.

Schumer has spoken out harshly against Kavanaugh and vowed to oppose him "with everything I've got." Democrats will need at least two GOP votes, in addition to all Democrats, to block the nomination.

But Democrats up for reelection in Trump states are not guaranteed votes against the confirmation, and many have signaled that Schumer's efforts may not be enough to convince them to vote against the nominee.

"My decision won't have anything to do with Chuck Schumer," Sen. Joe Donnelly (D-Ind.) told Politico. Donnelly, in addition to Manchin and Sen. Heidi Heitkamp (D-N.D.) all voted in support of Neil Gorsuch.

Sen. Claire McCaskill (D-Mo.) told Politico that Schumer "knows better" than to try to pressure her to vote a certain way.

"He doesn't come to me and say: 'You've got to vote with us on this.' He knows I'll tell him to take a flyin' leap," she said. "I'm going to do what I think is right. It has nothing to do with the party."