Asked in an interview with ABC News’s George Stephanopoulos, set to air Wednesday, what she would tell the president if she was in front of him in the Oval Office, Mary Trump responded, “Resign.”

Mary Trump, a clinical psychologist, said that her uncle has been “perverted” by deep issues in their family, making him “utterly incapable of leading this country, and it’s dangerous to allow him to do so.”

“I saw firsthand what focusing on the wrong things, elevating the wrong people can do — the collateral damage that can be created by allowing somebody to live their lives without accountability,” she said. “And it is striking to see that continuing now on a much grander scale.”

Mary Trump said that Fred Trump, her grandfather and President Trump’s father, was a “sociopath” whose years of poor treatment contributed to the president’s temperament. When her grandfather died, she and her siblings entered years-long litigation with the rest of the Trump family over their portion of his will, The Hill reported.

“He was incredibly driven in a way that turned other people, including his children (and) wife, into pawns to be used to his own ends,” she said. “It’s impossible to know who Donald might have been under different circumstances and with different parents. But clearly he learned the lesson.”

“Too Much And Never Enough” offers a damning portrait of Donald Trump, painting him as cruel, incompetent and narcissistic.

“If he is afforded a second term, it would be the end of American democracy,” Mary Trump writes.

The Trump family had fought to block the book’s publication, saying Mary Trump was violating a nondisclosure agreement she had signed, but the courts sided with her, and the memoir’s release was ultimately bumped up by two weeks.