The ad at this site (view with Windows Media) is said to "an almost unprecedented >8 point gross shift away from Bush in voting intentions among the 750-person test sample. It also badly eroded support for Bush across a wide range of measures including confidence in his Iraq policy and key measures of character including honesty and sharing the concerns of ordinary people."
It's also 100% true.
This is, according to Josh Marshall, about to go into heavy rotation in swing states.
Put a fork in Bush- he's done.