n the grips of monomania, psychotic people perseverate on their object of interest. They talk about their enthusiasm incessantly and believe, wrongly, that everyone else is similarly inclined. America’s establishment, left and right, and the media, are obsessed with Donald J. Trump. Trump’s tweets, his pretend press releases, his real ones, doesn’t matter. He occupies every neuron and inflames them. With each sweaty proclamation, the monomaniacs sound increasingly unhinged. Dick Cheney called Donald Trump the greatest threat to humanity and America and all that is good and decent. And also, he’s proud of his daughter because she staked her whole...