They hadn't been tricked into suporting the government yet with all of this talk of "we went in there to liberate Iraqis." That's all well and good, but wasn't this about weapons of mass distruction? That was the reason we went in there, not because Saddam made some change in his domestic policies that could no longer be tolerated.
Anybody notice that the people who try to bash other people over the head with ideas are also the ones who want to go to war so much?