Nevertheless, the Republican base requires that candidates tack away from science toward the theistic position — only God controls climate. More to the point, Rush Limbaugh says that climate change is a hoax and so it must be. Huntsman may as well be a Democrat.

It takes courage to swim against the tide of know-nothingness that has become de rigueur among the anti-elite, anti-intellectual Republican base. Call it the Palinization of the GOP, in which the least informed earns the loudest applause. The latest to this spectacle is Herman Cain, who has figured out how to turn his liabilities into assets. After fumbling for an answer during an editorial board meeting to a simple question about his position on Libya, a lead news item since February, Cain blamed — who else? — the media.

The problem wasn’t that he had no idea. The problem, he said, was that he likes to think before he speaks. Besides, there are so many countries out there…

He may be right. Despite his difficulties, Cain is still polling in the top tier, just behind Mitt Romney and Newt Gingrich. Even so, there are signs that the GOP is recognizing its weaknesses and is ready to play smarter. To wit: The sudden surge of Gingrich, who, whatever his flaws and despite the weight of his considerable baggage, is no intellectual slouch. Whether he can pull off a victory in Iowa remains to be seen, but a populist professor — a bombastic smarty-pants Republicans can call their own — may be just the ticket.