Democratic presidential candidate 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 Thursday tried to woo Pennsylvania voters by brandishing 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's recent comments about his idealism.

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Biden, who is from Scranton, Pa., said in a New York Times interview released Thursday that he prefers Sanders’s aspirational campaign style over 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’s caution.

“I like the idea of saying, ‘We can do much more,’ because we can,” the vice president said. “I don’t think any Democrats ever won saying, ‘We can’t think that big — we ought to really downsize here because it’s not realistic.'"

At his rally, Sanders called Biden “a great son of Pennsylvania.”

“I think the vice president is exactly right," Sanders said. "That is what this campaign is about."

Biden, like President Obama, has remained neutral in the Democratic primaries so far, though Obama did in March urge Democratic donors privately to rally around Clinton, saying Sanders’s presidential campaign was nearing its endpoint.