It was a rough last day in government for Elon Musk who showed up to the Oval Office for a sendoff with a black eye just hours after new bombshell reporting on allegations of his voracious drug use,” says Chris Hayes on the New York Times reporting.

Musk has spoken about his prescription ketamine use in the past. Last March, he told journalist Don Lemon that he uses a “small amount” of ketamine about once every other week. The ketamine, he said, is prescribed by “an actual, real doctor.”