"That's OK, I know you're not thinking", responded Trump, who apparently misheard her.
In fact, the President told reporter Cecilia Vega she wasn't "thinking" - words reflected in a corrected transcript the White House distributed on Tuesday morning.
Ms Vega quickly replied: "I'm not, thank you Mr. President".
When she continued to ask her question about Mr Kavanaugh, he dismissed her and said, "Excuse me, don't do that, don't do that, be nice" before turning to another reporter and ignoring her. He then declined to answer her question.
In all, it was the type of performance we've come to expect from Trump: volatile, wide-ranging, unexpected, and filled with the most random asides that leave viewers asking, "Wait, did he really just say that?"
"No, go ahead", responded Trump.More news: Financial Giant PNC To User Ripple's xCurrent Solution To Manage Treasury
He later circled back to Vega in a press conference that also found Trump deriding other female reporters.
Several months earlier, during Anthony Scaramucci's not-quite-two-week stint as White House communications director, he appeared in the press briefing room to gush about how impressed he was with Trump's limitless abilities, and marveled at the president's ability to sink "three-foot putts" while playing golf.
When he was done answering "trade questions", CNN's Kaitlan Collins tried to ask another question about Kavanaugh, however, Trump rudely interrupted her as well, telling her, "Don't do that!" Still, she is a woman challenging him, so he feels it necessary to cut her off and wave her away.
He said then-Fox News host Megyn Kelly had "blood coming out of her wherever". The president said he had "no problem" with that. They got worse. They're worse now than ever.
"I wouldn't mind that at all", Trump said. He declined to give details about which senators he meant, saying that he would save it for his book, "like everyone else does". "Somewhat compromising. And you know, I think it's very unfair to bring up things like this".
Vega asked him to clarify his feelings about the limits of the FBI investigation into Kavanaugh.