Public Policy Polling, a North Carolina based polling company, is Dem leaning in their comments, but their numbers are honest. They use the same methodology as Rasmussen, and generally yield similar results. They polled June 19-21.
Full results at:
http://www.publicpolicypolling.com/pdf/PPP_release_TX_622.pdf
I can imagine that Perry’s latest comments eschewing an Arizona-like immigration law plays into these results.