Historical precedents augur against Donald Trump—but perhaps the old rules no longer apply.

His adherents have cared little about his positions on other issues; after all, Romney, John Boehner, Eric Cantor, Mitch McConnell, et al. promised them everything and produced nothing. So Ann Coulter, a Trump cheerleader, commented that she would be fine with Trump “perform[ing] abortions in the White House,” given his immigration stance, while other supporters have ignored any dissonance between Trump’s views and their own. Trump has also been the beneficiary of an almost-worshipful press thrilled with his perpetual-motion quote machine, which covers every press conference or town hall, often live on television, and rarely challenges his comments, feasting on every outrageous statement or attack against another candidate or critic. And the blanket press coverage has meant that Trump has not had to spend a dime of his fortune on political ads.

Donald Trump: The Republican id

He’s a walking caricature, but it’s a caricature created from everything Republicans believe.

Trump’s hilarious insistence that everything he touches is the best, the absolute elite, the most high-end and top-shelf and super-classy, is an echo of how Republicans say we must talk about America itself.

.. Is Trump the most ridiculous candidate in the Republican presidential primary? Of course. But one thing you can’t say about him is that he doesn’t belong there. He’s the personification of the Republican id, saying forthrightly the things most of them want to finesse, embodying their worst impulses, and doing it all with a spectacular if unwarranted confidence.

Rush Limbaugh’s Evasive Embrace of Donald Trump

“Do you understand that I always have a purpose? Do you realize nothing is haphazard? You’re wondering why I’m supporting Trump. Who says I am? Have I announced specifically that I am, or are you perceiving it? A better question would be: If you think that, why? And I can’t go any further. I did with my brother last night. It’s on record, if I have to go back and prove this, and I told Snerdley this morning about this. But I can’t go any further here. It is what it is. I know it’s a cliche.”

So there you go.

Limbaugh always has a purpose, and those who’ve been listening long enough, if they have sufficient intelligence, will discern it, or at least fall back on their general confidence in him. Put another way, his incentives—as an entertainer—may diverge from those of his audience. His listeners should recognize his evasiveness and that their trust in him is misplaced. Conservatives who’ve been complicit in this farce for years should come clean.