Vice President Joe Biden Joe BidenSenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE voted early in the Democratic presidential primary in his home state of Delaware on Friday — but he's refusing to say which candidate he cast his vote for.

Biden's office would not comment on whether he backed Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE or Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE, according to Politico.



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Biden praised Sanders for his bold ideas in an interview this week — comments Sanders has touted on the campaign trail.

“I like the idea of saying, ‘We can do much more,’ because we can,” Biden said.

“I don’t think any Democrat’s ever won saying, ‘We can’t think that big — we ought to really downsize here because it’s not realistic.' C’mon man, this is the Democratic Party! I’m not part of the party that says, ‘Well, we can’t do it.’ ”

Delaware's primary is this Tuesday.