The attack is relentless.
The mainstream media is pounding on Bush day in and day out. Given the constant stream of negative press, it's not that surprising that polls are faltering. Try and find a single goddam story showing Bush doing something--anything--right.
As for Rumsfeld, Wolfowitz, and the rest, the attacks by the media are relentless.
Check out the transcript page at the DOD site, and read a few interviews. Every reporter in the room want to be The Guy Who Crushed Rumsfeld's Balls. It's a miracle there haven't been more flubs.