If a debate goes on long enough, some idiot will draw a Nazi analogy. That maxim, known as Godwin’s law, has deterred most journalists from comparing today’s politicians to Adolf Hitler. But sometimes, what brings the Nazi analogy closer isn’t the length of the discussion. It’s the behavior of the politician. That’s what is now happening in the case of Donald Trump. In Godwin’s honor, let’s stipulate: There will never be another psychopath quite like Hitler.