Here is a link for a more recent article where he was questioned about his immigration position.
Back in May, 2010 he said this:
“If I were governor of Arizona, I too would sign the Arizona immigration bill.”
Then two years later he said he would fight against an Arizona type bill if it came across his desk. I guess his opinions are still evolving.
Then, unless he could articulate how/why his position has changed he should get no votes for higher office; being that he’s shown himself to have no principles of his own.
Oh, how I wish ‘none of the above’ were a valid choice in the elections ;)