His referring to the Republican Party as The Blackmail Caucus is prize:

But are we ready to become a country in which “Nice country you got here. Shame if something were to happen to it” becomes a winning political argument? I hope not. By all means, vote for Mr. Romney if you think he offers the better policies. But arguing for Mr. Romney on the grounds that he could get things done veers dangerously close to accepting protection-racket politics, which have no place in American life.

I prefer to think of them as hostage-taking terrorists, but Krugman is eloquent and to the point.

Go Read.