From a New York Times obit by Sam Roberts headlined “Warren Boroson, Who Surveyed Psychiatrists on Goldwater, Dies at 88”:

Warren Boroson, a journalist who conducted a survey of psychiatrists that declared the 1964 Republican presidential nominee, Barry M. Goldwater, mentally unfit to be president — provoking a libel suit from the candidate and prompting a psychiatric association to muzzle its members from ever diagnosing a public figure from afar — died at his home in Woodstock, N.Y.