Ben Carson wasn't a good presidential candidate; he might be an even worse surrogate.

Appearing on CNN on Thursday morning, Carson struggled to defend comments over the weekend in which he said that Trump -- a man he has endorsed, mind you -- has "major defects" as a candidate. He also said, for some reason, that there were "probably" better potential presidents out there.

Asked to explain those comments Thursday, things only got worse. To wit:

  • "There are better people at everything, but what we have to do is we have to utilize what we have," Carson said. "We have to make the best of it. We have to improve it to the point where it's capable of being successful."
  • Asked whether he had someone in particular in mind when he said there were better potential presidents: "I don't think that that's a useful place to go. But it's an obvious statement, just like I would say, if you drop a brick off of a building, it's going to fall. Obviously, there's always going to be someone who's better at virtually anything."
  • Pressed again, Carson reached for his ear and said he was having problems hearing. "You think I'm making an excuse, but it's true," he volunteers. Kate Bolduan responded disbelievingly: "Are you making an excuse, doctor? I'm happy to talk a lot louder if need be."
  • Pressed again, Carson ignores that part of the question and answers the second part.

This, of course, is not the first time Carson has suggested he's maybe not thrilled about endorsing Trump.