Santorum was crushed, like someone who had been found in bed with a live boy, to paraphrase Edwin Edwards. Santorum was out of the mainstream of public opinion in Pennsylvania in a grand way. He didn’t “govern” according to the way the voters in Pennsylvania wanted him to and they fired him in a big way.
I know, and the “moderates” have taken endless delight in his defeat.
But that doesn’t mean he was crushed because of Iraq.