I would love to see some direct quotes. All I can find, and I've been searching, is what he said this morning, which is reproduced here among other places:
http://www.whitehouse.gov/news/releases/2004/08/20040805-5.html
I would certainly be concerned if they blasted the ad itself more categorically than they did here.
I'll keep my atennae tuned and will let you know if I can confirm. Thanks for the posts. Gives me renewed hope.