Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE says it would be a "terrible idea" for Democrats to recruit Vice President Joe Biden Joe BidenMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE to run for president if Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE is forced out of the race.

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"I think that would be a terrible, terrible idea," Sanders said Friday in an interview with The Young Turks, a pro-Sanders online news show.

"That would say to the millions of people who have supported us, that have worked with us, that would say all of your energy, all of your votes, all of your beliefs are irrelevant. We're going to bring in someone else," Sanders said.

"I happen to like Joe a lot, but I think that would be a very, very serious blunder for the Democratic Party," he added.

Biden has said often he isn't interested in running for president, citing the death of his son Beau last year as the main reason.

Clinton leads Sanders big in the Democratic presidential race, but Sanders has vowed to stay in the race until the Democratic convention this summer.

Clinton faces a potential indictment as the FBI investigates the private email server she used while serving as secretary of State. Many onlookers are speculating that the ongoing scandal could eventually force Clinton to end her campaign.