Obama came in the front runner. Obama left as the front runner. Nothing changed
Horribly set up debate. I thought McCain's performance was better than his previous one but he still came off shrill, out of touch, and weak. Obama looked like a president debating a challenger. I don't think there was any big moment in the debate, and that's what hurts McCain: he needed Obama to fuck up, and Obama didn't fumble.
I thought Obama swept the first debate. This time he merely stiff armed every McCain advance. He was the stronger presence in the room, he gave the clearest answers, he had the best attacks, etc. But I don't think this was some type of decapitating win for Obama