More background on the CNN debate at Riehl World View, "Don't Stick A Fork In Perry, He Isn't Done, Yet."
Mitt Romney obviously agrees.
At Politico, "Team Mitt Romney video tries to remind on Rick Perry."
UPDATE: The ad was pulled. See Hot Air, "Brutal new Romney ad: Rick Perry’s a moron; Update: Romney pulls ad?"
And here's a copy of it: