Men and women are divided on whether they believe President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE is mentally stable, according to a new Quinnipiac University poll out Wednesday.

According to the poll, 53 percent of men surveyed said they think the president is stable, while 40 percent said that he is not.

Those numbers are almost exactly the reverse for women: 53 percent said that Trump is not stable, while 39 percent said otherwise.

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The numbers were also sharply divided along party lines. Democrats overwhelmingly view Trump has unstable at 80 percent, while 89 percent of Republicans believe that the president is stable.

Trump's mental stability was thrust into the spotlight earlier this month after the release of a tell-all book, "Fire and Fury: Inside the Trump White House" by Michael Wolff, cast him as mentally unfit to be president.

In a remarkable defense of his mental capacity, Trump tweeted that he would, in fact, qualify as a "genius" — "and a very stable genius at that!”

The Quinnipiac poll surveyed 1,212 U.S. voters nationwide from Jan. 12-16. Its margin of error is 3.4 percentage points.