WASHINGTON — At time of writing, one entire major political party was still unsure whether a man who compared himself to Hitler , but in a wistful, “if-only” sort of way, ought to be its standard-bearer. The alternative being considered was literally anyone else. To observers who thought that this sounded like, maybe, a very easy call, party members responded that this was true but they just were not making it. Why? Some said they were afraid of getting yelled at. (If there is anything they know about people who aspire to be like Hitler, even a little bit, it...