Former FBI Director James Comey writes in his forthcoming book A Higher Loyalty that President Trump is "untethered to the truth" and built a "cocoon of alternative reality that he was busily wrapping around all of us."

Comey said when he first met Trump, he had "flashbacks" to when he prosecuted members of the mob, and Trump lies about "all things, large and small." Comey also writes that Trump is fixated on the dossier compiled by former intelligence officer Christopher Steele, which includes unconfirmed allegations regarding Trump and Russian prostitutes.

He said Trump gave several explanations as to why it was impossible for him to ever have been with the women, and told Comey it bothered him to think there was "even a one percent chance" first lady Melania Trump thought it was true. Comey thought this was a strange thing to say, writing, "In what kind of marriage, to what kind of man, does a spouse conclude there is only a 99 percent chance her husband didn't do that?"

Comey also dedicates space in the book to the size of Trump's hands ("smaller than mine, but did not seem unusually so") and his regrets over how he announced in July 2016 that Hillary Clinton would not be prosecuted over her emails. A Higher Loyalty is out Tuesday. Catherine Garcia