Pretty good, an effective ad to run would be a clip of Kerry at the debate saying that he has always had one position on Iraq and then showing quick clips of his changing position. Then, quick clips of President Bush at the debate and then different places and speeches repeating his steadfast position. Then, close with...we need a president we can trust. Or something to that effect.
We need to make the point that Kerry is just blowing smoke at these debates and saying whatever he thinks will get him elected. Hopefully, this will pull back some of those who began leaning his direction based on what he said on Thursday, as well as plant a seed prior to the next debate, so that his politically expedient answers will be viewed skeptically. If he lied in the first debate, why should they believe anything hs says in the subsequent ones.
It's getting late and I may be rambling, but you get the gist.