Mary Trump's book

She writes that  Twit's father abused him to the point of mental illness and that he is unfit to be  President. I know, big surprise. And now he's taking it out on we the people.

“By limiting Donald’s access to his own feelings and rendering many of them unacceptable, Fred perverted his son’s perception of the world and damaged his ability to live in it. [...] The personality traits that resulted – displays of narcissism, bullying, grandiosity – finally made my grandfather take notice but not in a way that ameliorated any of the horror that had come before."