To some mental-health professionals, the debate over diagnoses and the Goldwater rule distracts from a larger point. “This issue is not whether Donald Trump is mentally ill but whether he’s dangerous,” James Gilligan, a professor of psychiatry at New York University, told attendees at a recent public meeting at Yale School of Medicine on the topic of Trump’s mental health. “He publicly boasts of violence and has threatened violence. He has urged followers to beat up protesters. He approves of torture. He has boasted of his ability to commit and get away with sexual assault,” Gilligan said.

Bruce Blair, a research scholar at the Program on Science and Global Security, at Princeton, told me that if Trump were an officer in the Air Force, with any connection to nuclear weapons, he would need to pass the Personnel Reliability Program, which includes thirty-seven questions about financial history, emotional volatility, and physical health. (Question No. 28: Do you often lose your temper?) “There’s no doubt in my mind that Trump would never pass muster,” Blair, who was a ballistic-missile launch-control officer in the Army, told me. “Any of us that had our hands anywhere near nuclear weapons had to pass the system. If you were having any arguments, or were in financial trouble, that was a problem. For all we know, Trump is on the brink of that, but the President is exempt from everything.”

From “How Trump Could Be Fired” in the New Yorker.