At the White House, the man who had spent months campaigning on “LAW & ORDER” did nothing but watch television. Some of his staff, horrified by Trump’s tweet, had in the intervening few minutes pleaded with him to release a message urging his followers to stand down. The resulting tweet at 2:38 p.m. was hardly that. It read in its entirety: “Please support our Capitol Police and Law Enforcement. They are truly on the side of our Country. Stay peaceful!”

