I've been saying that for a long time, too. The Dem and MSM support for the war, such as it was, became opposition the day Bush flew onto that carrier, with a great backdrop, and gave a good speech announcing the end of "major combat operations". They saw a Republican triumphant, and riding a wave that would create dominance for a long time, and they fought back with everything they had, to deflate the glory. Well, "Mission Accomplished", they did it. It took several years of ceaseless, negative, pissy stories, day after day after day, but eventually, they people wore down, and they said "enough of this war." They just weren't smart enough to realize that they said "enough" because the MSM conditioned them to get tired of it, not because it was all that horrible or unsustainable.
There were many problems with the Bush Administration's handling of Iraq after the successful defeat of Iraq's Army, but truth be told, they had fewer mistakes and less costly ones than Dems did in places like Normandy and Vietnam. Those Dems just didn't have an antogonistic press sniping at every decision, small and large.
Ain't that the truth.