Another thing I'm skeptical about is the sample size. I find it really hard to take a poll seriously unless it nears 1,000 people or so.
Rick Perry can't win Virginia. Maybe he could have in 1992, but that state has shifted so much.
The sample size is not really that important. 600 should work well enough.
I recall a few years ago, that if a sample was over 1,000, it was taken to mean the poll was of terrible quality. Now if they are under that, the standard response is that it should be trashed? I know things have changed since 2006 and 2008, but damn.