He left office six months ago and ever since, he's been knocking around his Delaware mansion, shining up his Corvette (if he ever bought one), and hanging out at the Amtrak station.

But Joe Biden, who has been kicking himself for not jumping in to the 2016 race, might be gearing up for a new job: President of the United States.

At least, that's a possibility, as the former vice president launches the "American Possibilities" political action committee, which will "allow him to raise money for candidates and maintain relationships with longtime donors," the Associated Press reports.

"In an email to supporters and a Medium post, Biden plans to say that 'the negativity, the pettiness, the small-mindedness of our politics drives me crazy.' Biden isn't mentioning President Donald Trump by name but says that kind of politics is 'not who we are,' " the AP reported.

Just when we thought Crazy Uncle Joe had slipped into the shadows (unlike his former boss), he comes roaring back. At 74 years old, he'd be by far the oldest ever elected to a first term. But Biden just can't seem to get on with his life after politics, even after a lengthy career (48 years) on the public payroll.

“Biden has a lot of support out there, and this gives him a way to grow that support while also helping Democrats win and build the party,” Stephanie Cutter, a Democratic strategist, told the New York Times.

Uncle Joe, asked last month about Hillary Clinton's stunning loss, said, “I never thought she was a great candidate. I thought I was a great candidate.” Ah, the humility.

“No man or woman should announce for the presidency unless they genuinely believe that for that moment in the nation’s history they are the most qualified person to deal with the issues facing the country,” Biden said.

So wait, he wasn't the best qualified in 2016, but he is in 2020? Oh, it's just Crazy Joe blabbling.

Biden, like Clinton, is already a two-time presidential campaign loser, although he never won the nomination. He ran for president in 1988 (reports that he clearly plagiarized a speech scuttled that bid), and in 2008 (when he quickly faded after calling Obama "articulate and bright and clean").

But this time he might just have a chance if he runs, says Newsweek.

Despite his age, Biden would have to like his chances against Trump in 2020. Democratic firm Public Policy Polling on Tuesday released a poll that found he would have a better chance of defeating Trump than any other Democrat. In a hypothetical matchup, the poll found that Biden would defeat Trump by 14 percentage points, 54-40. Not far behind was Bernie Sanders, whom the poll found would beat Trump by 13 percentage points, 52-39. Sanders, however, is currently 75 years old, and would be 79 in 2020. Donald Trump in January became the oldest president to assume office at the age of 70.

Of course, he says he's not running, but what does that mean when uttered by a politician?

One thing we do know: He's got to be driving his wife, Jill, absolutely nuts. So expect him back on the campaign trail in a couple years.