The Divider: Trump in the White House, 2017-2021 by Peter Baker and Susan Glasser:
If they had heard Barry Sternlicht, they would have understood better. The day before the inauguration, Sternlicht, the billionaire cofounder of the Starwood hotel chain and a longtime golfing buddy of the new president, had explained the essential facts of Trump to an audience of power players at an off-the-record gathering in New York’s Metropolitan Club. Trump, he said, had been a friend for decades. “He’s the last friend who should be president,” Sternlicht confided.
Trump’s mind was “unusual,” Sternlicht said. Something was “wrong” in his head. He could not pay attention, could not do details, was not bothered by inconsistency. “He hasn’t read a book in thirty years,” Sternlicht said. “He’s not encumbered by the truth.” To golf with him was to see the real Trump. “Anyone who’s ever played with Trump knows the rules are for suckers,” he said. Trump would take the regulator off the golf cart so he could go faster. He sometimes raced off even before his partners took their swings. Trump always insisted that he won, whether he did or not. He did not even think of it as cheating.