Former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE (D) railed against President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE for his continued assertion that Russian election interference in elections is a “hoax.”

In a “60 Minutes” interview on CBS that aired Sunday, Biden said he is “very concerned” about the prospect of foreign interference in the upcoming election.

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"Everybody knows what's going on. Trump not only doesn't want to do anything about it, he's going out and asking for help. ‘Come help me. Come help me defeat — keep Biden from being the nominee,’” Biden told host Norah O’Donnell.

"The Russians don't want me to be president and Trump doesn't want me to be the nominee," the 2020 candidate added.

Biden hammered Trump for previously saying Russia’s interference in the 2016 election was a hoax, even after the U.S. intelligence community and Congress confirmed the Kremlin did indeed attempt to interfere.

Biden said that Trump is "an idiot— in terms of saying that. Everybody knows this. Everybody knows it. Nobody doubts it."

Trump repeatedly referred to former special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's probe of Russian interference in the 2016 election as a "hoax."

Jill Biden added that Trump is “encouraging” foreign entities to meddle in upcoming elections with his open calls to countries like China to look into his political adversaries.