But today’s conservative leaders were raised on Ayn Rand’s novels and Ronald Reagan’s speeches (as opposed to his actual governance, which was a lot more flexible than the legend). They insist that the rights of private property are absolute, and that government is always the problem, never the solution.

The trouble is that such beliefs are fundamentally indefensible in the modern world, which is rife with what economists call externalities — costs that private actions impose on others, but which people have no financial incentive to avoid. You might want, for example, to declare that what a farmer does on his own land is entirely his own business; but what if he uses pesticides that contaminate the water supply, or antibiotics that speed the evolution of drug-resistant microbes? You might want to declare that government intervention never helps; but who else can deal with such problems?

Well, one answer is denial — insistence that such problems aren’t real, that they’re invented by elitists who want to take away our freedom. And along with this anti-intellectualism goes a general dumbing-down, an exaltation of supposedly ordinary folks who don’t hold with this kind of stuff. Think of it as the right’s duck-dynastic moment.

You can see how Mr. Bundy, who came across as a straight-talking Marlboro Man, fit right into that mind-set. Unfortunately, he turned out to be a bit more straight-talking than expected.