Brad DeLong points me to this National Review attack on Nate Silver, which I think of as illustrating an important aspect of what’s really happening in America.

For those new to this, Nate is a sports statistician turned political statistician, who has been maintaining a model that takes lots and lots of polling data — most of it at the state level, which is where the presidency gets decided — and converts it into election odds. Like others doing similar exercises — Drew Linzer, Sam Wang, and Pollster — Nate’s model continued to show an Obama edge even after Denver, and has shown that edge widening over the past couple of weeks.

This could be wrong, obviously. And we’ll find out on Election Day. But the methodology has been very clear, and all the election modelers have been faithful to their models, letting the numbers fall where they may.

Yet the right — and we’re not talking about the fringe here, we’re talking about mainstream commentators and publications — has been screaming “bias”! They know, just know, that Nate must be cooking the books. How do they know this? Well, his results look good for Obama, so it must be a cheat. Never mind the fact that Nate tells us all exactly how he does it, and that he hasn’t changed the formula at all.

This is, of course, reminiscent of the attack on the Bureau of Labor Statistics — not to mention the attacks on climate science and much more. On the right, apparently, there is no such thing as an objective calculation. Everything must have a political motive.

This is really scary. It means that if these people triumph, science — or any kind of scholarship — will become impossible. Everything must pass a political test; if it isn’t what the right wants to hear, the messenger is subjected to a smear campaign.

It’s almost besides the point to notice that the whole notion that Nate Silver is somehow serving Obama’s interests by skewing the results is bizarre. This race is going to be decided by actual votes, not perceptions of “momentum”. But then posturing and bragging seems to be central to the right’s theory, for reasons I don’t get.

Anyway, it’s another disgraceful episode. And the fact that the National Review ran with this tells you all you need to know about the publication.