Rand Paul has never seemed particularly enamored with the Donald Trump show, but things between the two Republican presidential candidates took a nasty turn during the first GOP debate on Fox News when Trump declared, “I’ve never attacked him on his looks, and believe me, there’s plenty of subject matter there.”

So it should come as no surprise that when The Nightly Show’s Larry Wilmore had his “soul food sit-down” with Paul, he pressed him to “keep it 100” on the GOP frontrunner. As Wilmore put it at the top of the show, it was the “Tea Party movement meets the Sweet Tea movement.”

“I really love Donald Trump,” Paul said to Wilmore’s surprise. “I think he’s hilarious... He’s in the wrong sort of arena now. I mean, he would be great in sort of the arena of television.”

“You didn’t keep it 100,” a slightly disappointed Wilmore replied as he handed Paul some weak tea. “You kept it 70.”

But what would Paul think of joining a Trump-led ticket?

“It would be an utter and absolute disaster and I would want no part of it,” the Kentucky senator said.

“Thank you! That’s what I’m talking about!” Wilmore exclaimed in response. “That’s how you keep it 100.”

Earlier in the interview, Wilmore pushed Paul to deliver some “yo mama” jokes that might work against Trump in a debate. After all, the more insults Trump tells the higher he seems to rise in the polls.

Here’s the best Paul could come up with on the spot: “What do you think, like, ‘Your mother wears army boots’… would that work or not?”

Ultimately, he needed some help from Wilmore, who prompted him with, “Yo mama’s so stupid, she thinks pound cake is...?”

Paul nearly nailed the punchline with, “A vegetable?” before admitting that he “needs better writers.”

And now that fellow doctor Ben Carson is leading national polls over Trump, Paul expressed harsh words for him as well. “The brain is kind of important, but what’s the brain without eyes?” the ophthalmologist mused.