Glenn Greenwald, writing unrelatedly, provides an explanation in words:
For the last couple of years, the tactic of war proponents was to simply deny reality and pretend that the disaster in Iraq was just fiction, nothing more than the invention of an American-hating media. That little tactic isn’t working any longer. All but the hardest-core Bush loyalists have abandoned this war long ago. And anyone with eyes can see that our Iraqi project is a disaster – at best, it will achieve nothing in exchange for the incalculable costs our country has endured and will have to pay for a long time to come. At worst, it will ensure the opposite of our goals.They make decisions in a bubble, smear anyone who dares to question them, and then blame the powerless for failure of policies. This is fundamental; there is no adminsitration policy--from Medicare D to the Dubai Ports World deal--that does not fit this pattern.
Finally forced to accept the reality of their failure, war proponents have only two choices left: (a) admit their error and accept personal responsibility for their horrendous lack of judgment and foresight, or (b) blame others for their failure while insisting, in the face of a tidal wave of evidence, that they were right all along. Guess which option these Shining Beacons of Personal Responsibility are embracing? [. . .]
Those who insisted on this war, who started it, who prosecuted it, who controlled every single facet of its operation – they have no blame at all for the failure of this war. Nope. They were right all along about everything. It all would have worked had war critics just kept their mouths shut. The ones who are to blame are the ones who never believed in this war, who control no aspect of the government, who were unable to influence even a single aspect of the war, who were shunned, mocked and ridiculed, and who have been out of power since the war began. They are the ones to blame. They caused this war to fail.