Hooray for Everyone!
The really great thing about this war is that now that it's over (kinda), so many Americans can feel that they were right.
People who support the war see the fact that we stormed in there, blew stuff up, and took over as proof that we did the right thing. And there's plenty of footage of cheering Iraqis and kids hitting statues with shoes to make them feel like heroes. For these folks, the inevitable outcome (victory) is inherent proof of the righteousness of the cause. Tidy!
People who opposed the war can point to the fact that no nuclear, chemical, or biological weapons were found along with the fact that most Iraqis were not cheering and therefore didn't make it onto the TV. For these folks, the same inevitable outcome, and it's accompanying destruction, is the very reason they opposed the war in the first place.