Vice President Joe Biden, who presided over the contentious Supreme Court fights involving Robert Bork and Clarence Thomas, said he never denied any nominee a vote — unlike Senate Republicans, who are denying President Barack Obama's Supreme Court choice, Merrick Garland.

"I presided over more Supreme Court nominees than anybody living," Biden said in an interview with CNBC. "Every single person who got nominated got a hearing. Everyone got a vote in committee. Even the ones who weren't voted out of committee, which it required majority vote to get out, I insisted they go to the floor to get a vote. Liberals were mad at me at that time because they said we could block him in committee.