Robert Jay Lifton is an eminent psychohistorian. In this post, he talks with Bill Moyers about Trump, the Goldwater rule, the “duty to warn,” and what makes Trump so dangerous. Twenty-seven mental health professionals have written a book about Trump.

“The foreword is by one of America’s leading psychohistorians, Robert Jay Lifton. He is renowned for his studies of people under stress — for books such as Death in Life: Survivors of Hiroshima (1967), Home from the War: Vietnam Veterans — Neither Victims nor Executioners (1973), and The Nazi Doctors: Medical Killing and the Psychology of Genocide (1986). The Nazi Doctors was the first in-depth study of how medical professionals rationalized their participation in the Holocaust, from the early stages of the Hitler’s euthanasia project to extermination camps.

“The Dangerous Case of Donald Trump will be published Oct. 3 by St. Martin’s Press.”

“Moyers: Some of the descriptions used to describe Trump — narcissistic personality disorder, antisocial personality disorder, paranoid personality disorder, delusional disorder, malignant narcissist — even some have suggested early forms of dementia — are difficult for lay people to grasp. Some experts say that it’s not one thing that’s wrong with him — there are a lot of things wrong with him and together they add up to what one of your colleagues calls “a scary witches brew, a toxic stew.”

“Lifton: I think that’s very accurate. I agree that there’s an all-enveloping destructiveness in his character and in his psychological tendencies. But I’ve focused on what professionally I call solipsistic reality. Solipsistic reality means that the only reality he’s capable of embracing has to do with his own self and the perception by and protection of his own self. And for a president to be so bound in this isolated solipsistic reality could not be more dangerous for the country and for the world. In that sense, he does what psychotics do. Psychotics engage in, or frequently engage in a view of reality based only on the self. He’s not psychotic, but I think ultimately this solipsistic reality will be the source of his removal from the presidency…

“Moyers: There’s a chapter in the book entitled, “He’s Got the World in His Hands and His Finger on the Trigger.” Do you ever imagine him sitting alone in his office, deciding on a potentially catastrophic course of action for the nation? Say, with five minutes to decide whether or not to unleash thermonuclear weapons?

“Lifton: I do. And like many, I’m deeply frightened by that possibility. It’s said very often that, OK, there are people around him who can contain him and restrain him. I’m not so sure they always can or would. In any case, it’s not unlikely that he could seek to create some kind of crisis, if he found himself in a very bad light in relation to public opinion and close to removal from office. So yes, I share that fear and I think it’s a real danger. I think we have to constantly keep it in mind, be ready to anticipate it and take whatever action we can against it. The American president has particular power. This makes Trump the most dangerous man in the world. He’s equally dangerous because of his finger on the nuclear trigger and because of his mind ensconced in solipsistic reality. The two are a dreadful combination.”