This commentary in the New York Times nails it:

Fending off the chaos that would almost certainly come with civil war would be a reason to stay the course, although it does not inspire the full-throated rhetoric about freedom that Mr. Bush offered last night. But the nation needs to hear a workable plan to stabilize a fractured, disintegrating country and end the violence. If such a strategy exists, it seems unlikely that Mr. Bush could see it through the filter of his fantasies.

It’s hard to figure out how to build consensus when the men in charge embrace a series of myths. Vice President Dick Cheney suggested last weekend that the White House is even more delusional than Mr. Bush’s rhetoric suggests. The vice president volunteered to NBC’s Tim Russert that not only was the Iraq invasion the right thing to do, “if we had it to do over again, we’d do exactly the same thing.”

It is a breathtaking thought. If we could return to Sept. 12, 2001, knowing all we have seen since, Mr. Cheney and the president would march right out and “do exactly the same thing” all over again. It will be hard to hear the phrase “lessons of Sept. 11” again without contemplating that statement.

I like what Richard Cohen says, too:

On "Meet the Press" on Sunday, Dick Cheney said that if he had it to do all over again, he would still go to war in Iraq — "we’d do exactly the same thing," he said. Why? Is the man incapable of learning from experience? We now know from umpteen reports that there was no link between bin Laden and Hussein. We now know, the Weekly Standard notwithstanding, that Mohamed Atta did not meet in Prague with someone from Iraqi intelligence. We now know that Hussein had no weapons of mass destruction and that the Iraq war — which has cost America more than 2,500 lives, 20,000 casualties, the respect of the world and billions of dollars — is for naught. Talleyrand said of the Bourbons that they forgot nothing and learned nothing. It will be said of Cheney that he forgot everything and learned nothing.

How did bin Laden get so lucky? How did he get so fortunate in his choice of enemies? The Bush administration not only validated his wildest dreams — dreams that even some of his aides thought were unrealistic — but went even further. By using torture, by the abuses at Abu Ghraib prison, by employing "extraordinary renditions" of suspects to countries where they could be tortured, by insisting on going it almost alone in Iraq, by telling the international community to shove it, by declaring a war for an idée fixe — this fierce obsession with Hussein goes back a long way — the United States has made itself reviled in much of the world.

But Keith Olbermann said it best.  The best part:

How dare you, Mr. President, after taking cynical advantage of the unanimity and love, and transmuting it into fraudulent war and needless death,  after monstrously transforming it into fear and suspicion and turning that fear into the campaign slogan of three elections?  How dare you — or those around you — ever "spin" 9/11?

Just as the terrorists have succeeded — are still succeeding — as long as there is no memorial and no construction here at Ground Zero.

So, too, have they succeeded, and are still succeeding as long as this government uses 9/11 as a wedge to pit Americans against Americans.