“All things are possible, absolutely,” the respected retired pediatric neurosurgeon tells Fox News host Neil Cavuto on “Your World with Neil Cavuto.”

“I have had a chance to associate with him now that I have moved down to Florida.”

Trump, whose surge in polls in the wake of remarks about illegal immigrants that have stirred controversy and admiration, is “a very smart guy,” Carson said in the interview, reported by The Hill.

“And he is a fun guy. So, I will leave it at that,” he tells Cavuto.