“If he does attack me, I’ll continue to talk about issues. I just really don’t buy into the attack-your-fellow-Republicans thing. I’m just not going to do that,” Carson said Friday on Bloomberg’s “With All Due Respect.”

Trump previously said that he would start attacking Carson given the retired neurosurgeon’s rise in the polls.

“Probably. At some point, yes, which I actually look forward to doing,” Trump said on ABC’s “Good Morning America” last week, adding that at the moment, “I can’t do it. He’s been so nice to me.”

And Carson said Friday that the real estate mogul has also been nice to him.

“My personal interactions with him have shown him to be a gentleman,” Carson said. “I think there’s another element sometimes when he’s on camera.”