It’s usually a bad sign when people openly question whether a candidate will follow through on his proposals. But there is nothing usual about Donald Trump’s rise to the top of the GOP ticket, which helps explain this WaPo quote that would be impossible to process if it were written about any other candidate: “The wall along the Mexican border is one of Trump’s most enduring and popular proposals, prompting raucous cheering and chants wherever he goes. Yet many of Trump’s fans don’t actually think he will build a wall — and they don’t care if he doesn’t.”