Speaking at an MSNBC hosted town hall event scheduled to air tonight, Senator Rubio admitted he had regrets about some of his more juvenile attacks on Donald Trump.

Asked by an attendee at the town hall how he could “sacrifice basic Christian principles” to go after Trump in the way he did, Rubio replied, “In terms of things that have to do with personal stuff, yeah, at the end of the day it’s not something I’m entirely proud of. My kids were embarrassed by it, and if I had to do it again I wouldn’t.” That’s a reference to comments Rubio made in the lead up to Super Tuesday where he mocked Trump’s spelling and suggested he was sweating and may have wet his pants.

Rubio drew a line at “the other charges” related to Trump’s business ventures saying he didn’t regret criticizing those because, “this time the stakes are not a worthless $36,000 degree at Trump University. The stakes are the greatest nation on earth.”

Host Chuck Todd pressed Rubio for more asking, “you regret the schoolyard stuff?” Rubio responded, “This is a guy that has basically offended everyone for a year. I mean literally has mocked a disabled journalist, a female journalist, every minority group imagineable on a daily basis…he’s used profanity from the stage.”

“That said, I don’t want to be that. If that’s what it takes to be president of the United States then I don’t want to be president. I don’t think that’s what it takes to be president. In fact, I know it’s not what it takes. It’s not what we want from our next president and if I had to do it again I would have done that part differently.”

Rubio’s regrets probably come too late. He was shut out of delegates Tuesday night and is current running in 2nd place in his home state according to the most recent polls. Another sign that his support is fading came Wednesday afternoon in the form of this image of a Rubio rally in Florida: