Romney hasn't changed -- the audience has

What's all this fuss about Mitt Romney's allegedly "disastrous" interview with Bret Baier?  I just watched it, and I saw the same Romney I've seen in a half dozen debates--evasive with regard to past and current positions, drawing distinctions without differences, happily misrepresenting opponents' positions and deeds -- in a word, full of shit -- but also in full command of his contorted policy positions and campaign messages, never really at a loss for words.  If a little stammering could sink a candidate, Obama would still be a state senator.  As for the "snippiness," I thought he just took a page out of Herman Cain's playbook: when challenged, begin by asserting forcefully that your challenger is wrong.

Let's look at* the exchange over immigration policy: