Discussed in this essay:

Trump: The Art of the Deal, by Donald Trump with Tony Schwartz. Ballantine Books. 384 pages. $16.99.

Crippled America: How to Make America Great Again, by Donald Trump. Threshold Editions. 208 pages. $25.

Not many facets of the Trump apparition have so far gone unexamined, but I can think of a significant loose end. I mean his sanity: what is the prognosis for his mental health, given the challenges that lie ahead? We should bear in mind, at this point, that the phrase “Power corrupts” isn’t just a metaphor.

There have been one or two…