Rick Santorum.
He'll move to the left over the next two years and people will fall for it.
Someone else at another forum put it like this...
"He is famous for this tactic. He normally emerges from under his rock about a year before he runs and then he starts trying to paint himself as the "crusader for the little helpless people"...
Expect ads highlighting his work with the elderly, the sick, and he will rehash all his work on Megan's law..."
Plus, from what Ive heard Casey is a horrible public speaker and far from the brightest guy in the world. If he agrees to a debate it will probably propel Santorum ahead in the poll's and eventually to victory.
I hope Im wrong, but looking at it from a non-partisan point of view Id say its a lean-Satorum race.
^Replace Santorum with Kerry and Casey with Bush - this fits perfectly (except Kerry moved to the right, sort of). Think about it, and remember what happened.