Former 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 is edging closer to a presidential run and has said privately that he sees himself as the only Democrat who can defeat President Trump in 2020, according to Politico.

Biden reportedly views himself as a well-seasoned statesman who could mend deep seeded divisions across the country as well as within the Democratic Party.

“He’s a great respecter of fate,” a source close to Biden told Politico, adding, “At some point, it may turn into fate and planning.”

Speculation has swirled around a potential Biden presidential bid in recent months and the former senator does not appear to be staying out of politics.

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Biden has been one of President Trump's most vocal critics, recently tearing into what he called "phony nationalism" that is "undermining the social fabric" of the U.S.

He has also offered a blunt take on former Democratic presidential nominee 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, saying in May that he never thought she would be a great candidate.

The former vice president has kept a largely busy public profile, often speaking at political events.

He launched his own super PAC, American Possibilities, in May, and is set to launch a book tour for his memoir "Promise Me Dad" next week.

A source in contact with Biden's advisers told the publication that at the moment Biden's primary focus is his book tour.

“Right now, he’s pretty laser-focused on the book tour. Get through that and go see what we can do in ‘18, and see where things are then,” the source said.

Biden himself has also appeared to publicly mull a presidential run and has refused to rule out a 2020 run.

"I have a regret that I am not president, because I think there is so much opportunity," Biden told Oprah Winfrey in a clip from "Super Soul Sunday" on the Oprah Winfrey Network. The full interview will air Sunday.