Joe Biden has a reputation for saying what’s on his mind, and on Thursday night, he reportedly didn’t hold back at all about former Democratic presidential candidate Hillary Clinton.

“I never thought she was a great candidate. I thought I was a great candidate,” Biden reportedly told an audience of hedge fund managers at the annual SALT conference in Las Vegas.

“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 continued, according to TheStreet’s Ronald Orol.

Despite his criticism of Clinton as a candidate, Biden did add that he thought Hillary would have been “a really good president.”

Biden had considered running for the Democratic nomination against Clinton and Bernie Sanders in 2016, but decided against it following the death of his son, Beau, in 2015. Biden has repeatedly said his emphasis right now is on his family being “put back together,” but on Thursday, he left the door open about a possible run in 2020.

“If I get those things done, and I’m healthy and viable, and it looks like I’m the best man to do it, I may very well do it,” Biden said. “But my family comes first.

“Could I? Yes,” Biden continued. “Would I? Probably not.”

This isn’t the first time Biden has spoken with regret about the 2016 election. In March, Biden told students at Colgate University in New York that he thought he could have won the election against Trump.

“I had a lot of data and I was fairly confident that if I were the Democratic Party’s nominee, I had a better than even chance to becoming president,” Biden said.