Tea parties prove that Republicans are insane or something

But here’s the thing: the G.O.P. looked as crazy 10 or 15 years ago as it does now. That didn’t stop Republicans from taking control of both Congress and the White House. And they could return to power if the Democrats stumble. So it behooves us to look closely at the state of what is, after all, one of our nation’s two great political parties.

One way to get a good sense of the current state of the G.O.P., and also to see how little has really changed, is to look at the “tea parties” that have been held in a number of places already, and will be held across the country on Wednesday. These parties — antitaxation demonstrations that are supposed to evoke the memory of the Boston Tea Party and the American Revolution — have been the subject of considerable mockery, and rightly so.

But everything that critics mock about these parties has long been standard practice within the Republican Party.