Santorum is pro-life, I believe he is pro-second amendment, he's young, energetic, appealing and he would carry a huge home state. If I'm not mistaken, the media has taken him to task over his views on gay marriage. If his major failure is his support of an incumbent Republican, it seems to me that his good far outweighs his bad. I think he might be a player in four years.
Are you in PA?
Are you aware of the anger towards Santorum for his support of Arlen Specter?
He could have backed someone whose beliefs were the same as his, but he chose to do the old boys club thing and betrayed the people who put him in office.
He backed the man whose votes cancel his own. Does that make sense? Rather than advance the values that he claims to support, he did his best to crush it. Principle means something to a lot of us and he turned his back on that for what he claims is party but is really to secure help for himself as he rises (if he does) through the party ranks.
He is damaged goods to a lot of us. You may not like that, but it's the truth.