When Will McCain Admit HE Was Wrong About Invading Iraq?

Every time Iraq or Afghanistan comes up in a debate, John McCain attacks Obama for refusing to admit he was wrong about the surge. In Nashville he said,

He still will not admit that he was wrong about the strategy of the surge in Iraq, and that's the same kind of strategy of go out and secure and hold and allow people to live normal lives.

Obama has wasted precious debate time explaining his statements on the surge, rather than simply asking: Senator McCain, when will you admit you were wrong about invading Iraq in the first place?

If Obama ever said that to McCain, I suspect McCain would melt into a steamy heap on the floor like the Wicked Witch of the West after a bucket of water.

Update 1: Obama attacked McCain's Iraq errors by playing off a different McCain attack - that Obama "doesn't understand." SilentPatriot has the video:

Obama: Well, you know, Sen. McCain, in the last debate and today, again, suggested that I don't understand. It's true. There are some things I don't understand.

I don't understand how we ended up invading a country that had nothing to do with 9/11, while Osama Bin Laden and Al Qaeda are setting up base camps and safe havens to train terrorists to attack us.

That was Sen. McCain's judgment and it was the wrong judgment.

When Sen. McCain was cheerleading the president to go into Iraq, he suggested it was going to be quick and easy, we'd be greeted as liberators.

That was the wrong judgment, and it's been costly to us.

Obama just needs to add one more rhetorical flourish to destroy McCain - "John, why won't you simply admit you were wrong about invading Iraq?"