WATCH: Trump Reenacts Carson’s Attempted Stabbing Story In Iowa Rant

Donald Trump targeted Dr. Ben Carson and the retired neurosurgeon’s descriptions of his violent youth in a lengthy, rambling rant at a rally in Iowa on Thursday night.

Trump mocked Carson’s claim that when he tried to stab a relative, the knife hit the person’s belt buckle and broke.

“Give me a break. Give me a break. Give me a break,” Trump said on Thursday after recounting Carson’s story.

Trump them moved beside the podium and used his own belt to demonstrate how easily a belt buckle moves, questioning Carson’s statement that the buckle stopped the knife. Trump noted that in Carson’s case, “amazingly, the belt stayed totally flat.”

“How stupid are the people of Iowa — how stupid are the people of the country to believe this crap?” Trump asked.

The real estate mogul also echoed comments he made during an interview on CNN, comparing Carson’s history of violence to child molestation.

“If you’re a child molester, a sick puppy, a child molester, there’s no cure for that — there’s only one cure and we don’t want to talk about that cure, that’s the ultimate cure. No there’s two, there’s death and the other thing. But if you’re a child molester, there’s no cure, they can’t stop you. Pathological, there’s no cure,” Trump said at the Iowa rally.

Watch Trump’s belt buckle demonstration via MSNBC:

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