It helps that Obama tends to clarify why he changes a position and McCain tends to say "I never said that."

Reporter: Now you originally agreed with the president that the war would be short and pay for itself and-

McCain: No I didn't.

Reporter: err, well ok, but not long after that you said we were doing everything wrong, that the war was too costly and being conducted badly, so-

McCain: I didn't say that, we're approaching victory in Iraq. It's more peaceful than it's ever been, the government is taking charge in a capable manner, casulties are down.

Reporter: But you said-

McCain: I've always been aware of the costs of war but this is an enemy that hates everything we stand for. We can't back down when there's a country in chaos.

Reporter: About that, when you took a trip to Iraq you claimed that the insurgency was dying down enough to walk through a Bagdahd market.

McCain: I don't remember saying anything like that, we can't leave, it's far too dangerous for us to leave things in the Iraqi government's hands.

Reporter: But earlier in this very interview you said-

McCain: Pancakes!!

And we all know how great politicans can be when they never admit they made a mistake.