Want to be Hitler? You don’t have to hate Jews, invade Poland or grow a silly mustache. There’s only one thing you have to do: Win an election against the left, or even look like you might. We’ve seen that for years, of course. Democrats have likened every GOP presidential candidate back to Tom Dewey to the Austrian corporal. When the Tea Party movement — best known for leaving the sites of its protests cleaner than it found them, in stark contrast to lefty groups like Occupy or BLM — appeared on the scene, they were immediately likened to Hitler’s...