That, plus they want Bush impeached. They'll bite their tongues for now while the post-election happy-talk goes on, but soon they'll demand to see some action on that front. They know that right now there's not enough support from the public for impeachment, so they'll try to drum up that support by pounding Bush completely into the ground. Once they can start pushing polls that show his approval in the mid-20's, the impeachment talk will start for real.
Folks, the next two years is going to be either investigations and hearings all the time or the President is going to hand them the keys to the barn door and do pomp and circumstance for two years.