Whether it is Perry or Palin, it is good for Paul.
According to today's Rasmussen poll:
Overall, just 28% of potential Iowa Caucus participants are absolutely certain of how they will vote, while the rest could change their mind. Among those who are certain of their vote, Ron Paul is on top at 27%.
Just 49% of Paul's supporters would vote for the Republican nominee if their man does not win the nomination. That's well below the total for other candidates.
Paul has strong, loyal support. Perry/Palin will only add another candidate to the mix to steal votes from Romney, Bachmann, and Pawlenty. Elections are a zero-sum game...don't forget that. Paul's support is loyal (if it's not, I'd rather not have it anyways). Adding Perry is exactly what we should want. He won't emerge as the front-runner, either. He will spike at the beginning, and then slowly creep back down the polls after a few weeks like everyone else. Between Romney, Bachmann, Perry, and Pawlenty, the vote is split BIG TIME. Perry may steal a little from Paul, but not too much.