Fanatical?

The Instapundit considers fanaticism. I guess you have to be outside a group to recognize when it has lost its composure and become rabid. I've always been pretty careful about accepting Right Wing assertions without question, and I assumed that the lefties were too. But after 2000, they lost it, and the more they rage, the angrier and more unreasonable they get.
They seem to have a psychological need to have control of at least one branch of government that they can't really articulate, except in terms of the wickedness of their opponents. It's an interesting question, but unlikely to resolve anything, I'm afraid.