Santorum is a RINO cheat. Just because he spews the right sound bites does not make him a conservative. He earmarked money for community block development programs, voted for subsidies for ethanol supposedly to prevent global warming, demanded money for Amtrak projects to help unions, endorsed Arlen Specter over Pat Toomey and triangulated his position on abortion in 1990. He repeatedly voted to raise the debt limit.
Right now, he is positioning himself to be the running mate of Mitt Romney so that in case Romney gets the nomination, the frauds can come and tell us that we should support the ticket since the VP choice is that of a conservative.
Santorum is also acceptable to Karl Rove which makes him yet another crooked politician whose rhetoric is conservative but whose record is liberal.