When it comes to politicians, you never know what they're thinking, especially when it comes to trying to win the ultimate race to the White House. That's why former Republican presidential candidate Marco Rubio is now apologizing for mocking rival Donald Trump and the size of his manhood during a rally earlier this year.

Rubio, who dropped out of the race after failing to win his home state of Florida during the primaries, now says that he's sorry for his words when he suggested that Trump's manhood might be smaller than average, given the size of his hands.

"I actually told Donald--one of the debates, I forget which one--I apologized to him for that," Rubio said, according to CNN on Tuesday. "I said, 'You know, I'm sorry that I said that. It's not who I am and I shouldn't have done it.' I didn't say it in front of the cameras, I didn't want any political benefit."

Many critics think that Rubio might be warming up to Trump simply because the Republican nominee is still vetting for potential Vice President candidates. Rubio's name has so far not been mentioned in the running.

Trump's other opponents, Ted Cruz and John Kasich, dropped out of the race after realizing that it would be mathematically impossible for them to win the primaries.

Tags: Marco Rubio donald trump