I’m not sure Perry hurt himself, really, at least not as much as Bachmann did or even Romney.
Romney, IMHO, actually did poorly. He usually debates well on first glance, and comes across well. Last night he seemed off and Perry got the best of him.
The more I see of Romney, the more I am sickened. He just hovers like a goon over whomever is next to him on the stage. He seems much more tired, old, desperate, entitled, and wimpy that he did in 2008.