Republicans aren't thinking as they used to think on these issues. There has been a role reversal at the leadership level and it has trickled down.
The sense I get from this is that the American public has become far more skeptical about what is happening in Iraq.
While Americans generally support the goal of promoting democracy, they take the pragmatic approach of not making it a top priority in all cases.
It's clear that people are taking their cues from the president--either embracing his leadership or moving away from it.