Psychoanalyzing Donald Trump has been an all-American parlor game for going on 18 months now, but I think we may be asking the wrong question — or, perhaps, viewing it through the wrong frame. I don’t think he is mentally ill.

Yes, there’s ample evidence of Trump’s narcissism, paranoia, verminophobia, racism, and misogyny, along with a grab-bag of minor personality quirks. But most people are missing the obvious signs of a potential health problem that, I believe, renders him mentally unfit to carry out the duties of the office.

I strongly suspect Donald Trump suffers from dementia.

This idea is not new. It was floated as far back as October 2015, when Steve King assembled evidence at Death and Taxes.