CNN wants nothing more than to sink Perry, if they were going to manipulate the poll they would of showed Perry losing the lead after their debate.
But instead the poll shows their attempt to detroy Perry at the debate failed miserably, and Perry is still the front runner by double digits.
CNN does want to destroy Perry, but the debate you speak of was held by MSNBC/NBC. The Reagan Library debate, right?
Tonight, there is a debate being held by CNN. In this one, they’ll have their chance at Perry like NBC had theirs.