Rep. Maxine Waters (D-Calif.) slammed Housing and Urban Development (HUD) Secretary Ben Carson Benjamin (Ben) Solomon CarsonBiden cannot keep letting Trump set the agenda The Hill's 12:30 Report: Trump heads to New Hampshire after renomination speech Five takeaways on GOP's norm-breaking convention MORE during a Congressional Black Caucus Foundation gathering on Thursday, calling him an "educated fool."

The comments were reported by the Washington Examiner.

"Look at Ben Carson. My God. My grandmother would call him an educated fool," Waters said.

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"Here's a man who has a reputation of being a highly competent surgeon, but when he talks about poor people, he says they're the cause of their poverty. He doesn't understand why you didn't do what he did and why you didn't make it like he made it. And he doesn't know the difference between slavery and immigration," she continued.

Carson is set to testify before the House Financial Services Committee, where Waters serves as the top Democrat.

"He's coming before my committee. If you think I took [Treasury Secretary Steve] Mnuchin on, you watch what I'm going to do to Ben Carson," she said.

This is not the first time Waters has taken aim at Carson.

Waters said in July that Carson “doesn’t care about people in public housing," and warned she would "take his ass apart" when he testified before the committee.