While the Democratic primaries were in full swing last year, it seemed pretty obvious that Hillary Clinton would be the party nominee despite stiff opposition from politicians such as Bernie Sanders.

Despite that, for what seemed like months, there was one man who seemed to loom ominously in the background — Vice President Joe Biden.

Will he run? Or will he let Hillary and Bernie duke it out? But the vice president gave no answer for weeks and weeks until, finally, on October 21, 2015, he decided that 2016 would not be his year to return to the Oval Office despite his huge fanbase.

But who could blame him? His son Beau died of brain cancer on May 30, 2015, and he just wasn't ready for the hardships of the campaign trail while his family still grieved.

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Today, Biden seems to be singing a different tune; at least, he's a bit less cryptic about a possible run against incumbent President Donald Trump in 2020. While he has spoken about it before, during the SALT hedge fund conference in Las Vegas on May 18, the former vice president said he has not ruled out the possibility:

“Could I? Yes. Would I? Probably not.”

While that may seem pretty straightforward, Biden followed up by saying that his family still comes first and that he has some serious financial commitments to his wife before he makes a run.

He needs to pay off his mortgage, according to CNN. But if he's healthy, and the house is in order, he's confident in his ability to run, but it's not 100 percent:

"I may very well do it.

At this point, no one in my family or I have made the judgment to run."

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But Biden's intriguing speech at SALT did not stop there. In fact, he took quite the swing at fellow Democrat Hillary Clinton. When asked whether he thought she was the right woman for the job, he did not mince words:

“I never thought she was a great candidate. I thought I was a great candidate.”

But he did go on to say that “Hillary would have been a really good president.”

Despite the claim that he needs to pay his mortgage, Biden pledged to donate his $200,000 speaking fee to charity.