Bill Moyers talks with Dr. Bandy Lee, editor of THE DANGEROUS CASE OF DONALD TRUMP. Four years ago, Dr. Lee felt a duty to warn the country about dangerous possibilities stemming from a man who lacked the mental fitness to be president, breaking the “Goldwater Rule.” Dr. Lee had no background or interest in politics. For almost 20 years,  she had been trying to understand and prevent violence. It was her calling. After earning medical and divinity degrees while studying at Yale and Harvard, and a stint as chief resident at Massachusetts General Hospital, she joined Yale’s faculty to teach in both the school of medicine and the law school. In her clinical practice, she treated inmates in maximum security prisons, and in time she began applying psychiatric concepts to public health and safety.