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A day after President Donald Trump riffed on critic Rep. Maxine Waters at a rally in southwestern Pennsylvania, the California Democrat returned fire, bringing up allegations of an affair he had with a pornographic film star.

While stumping for State Rep. Rick Saccone (R-Allegheny), Trump criticized Waters for repeatedly calling for him to be impeached.

"You ever see her? -- 'We will impeach him, we will impeach him'," he said, mimicking the Los Angeles Democrat. "She's a low I.Q. individual -- you can't help it, she really is."

On Sunday, Waters responded on MSNBC, calling Trump "con man Don" and saying that his alleged 2006 affair with Stephanie Clifford - whose stage name is Stormy Daniels - may "get him" if the Russia investigation proves fruitless.

"This is what this con man does. He diverts attention from himself by attacking others," she said, accusing Trump of chiefly picking on Democratic women. "Stormy [Daniels] is not going away."

Waters said that "for if (sic) some reason, [Robert] Mueller does not get him, Stormy will."

Waters said she is used to his "name-calling" and that she "has plenty [of names] for him."

"I'm not going to be intimidated by him," Waters said.

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