In Susan Glasser and Peter Baker's forthcoming book — The Divider: Trump in the White House, 2017-2021 — there is this exchange between Trump and then-chief of staff John Kelly: Trump: "You f---ing generals, why can’t you be like the German generals?" Kelly: "Which generals?" Trump: "The German generals in World War II." Kelly: "You do know that they tried to kill Hitler three times and almost pulled it off? Trump: "No, no, no, they were totally loyal to him." The president remained impressed by Nazi generals' loyalty to Hitler — a telling disorder of his authoritarian personality. He was...