I won't vote for him later, either.
Santorum clearly understands politics, the game, the math, the compromises, the moves. (For example, the Specter gambit.)
Therefore he knows that staying on until the money runs out is hurting the conservative cause by helping Mitt Romney. There is no way Santorum is doing this innocently, naively, blindly.
Something is more important to Rick Santorum than principle. Whether it's his own self-importance, enrichment, advancement, some quid pro quo with Romney -- it's more to him than the cause of conservatism.
Santorum is a sell-out. He was a sell-out before, and he will be a sell-out in the future.
(For example, the Specter gambit.)
That is tired. Wow. One thing and he gets pounced on. Well maybe Santorum knew that Toomey was going to vote for fags in the military which he did. Arlen for as bad as he is did not vote for gays in the military. Toomey did! No criticism of Toomey? Doesn’t sound like a conservative to me.