Early this year, Bobby Jindal, the governor of Louisiana, made headlines by telling his fellow Republicans that they needed to stop being the “stupid party.” Unfortunately, Mr. Jindal failed to offer any constructive suggestions about how they might do that. And, in the months that followed, he himself proceeded to say and do a number of things that were, shall we say, not especially smart.

Nonetheless, Republicans did follow his advice. In recent months, the G.O.P. seems to have transitioned from being the stupid party to being the crazy party.

I know, I’m being shrill. But as it grows increasingly hard to see how, in the face of Republican hysteria over health reform, we can avoid a government shutdown — and maybe the even more frightening prospect of a debt default — the time for euphemism is past.

It helps, I think, to understand just how unprecedented today’s political climate really is.

Divided government in itself isn’t unusual and is, in fact, more common than not. Since World War II, there have been 35 Congresses, and in only 13 of those cases did the president’s party fully control the legislature.