It thinks that shrillness is convincing.
They thought that if they scrwamed at the top of their lungs about Karl Rove's (true) statements about leftist antipatriotism they would get him fired.
They thought if they ceasely promoted Cindy Sheehan's high-decibel ranting they would get a majority in the US in favor of ignominious withdrawal.
They thought if they howled about John Roberts' "fascist" opinions, they would get his nomination shot down.
Now they think crowing about the Bush administration's (nonexistent) failures during the flood will get them a jump on the '06 midterms.
What was the definition of insanity again? Doing the same thing repeatedly while expected a different result?
I think that's the definition of Obsession rather than Insanity, but nobody listens to me.