Romney is done. If Gingrich drops out, this race is over. Mitt simply refuses to be become an aggressive candidate, constantly falling back on negative ads instead of attacking his opponents as directly as they have attacked him.
Because of his stand for social conservatism, I should be supporting Santorum, but I don't want to because that will make my vote in the PA primary worthless.
The minor catch with this line of thinking is that Romney has more delegates and the delegate system is rigged in his favor; the states that award winner-take-all skew heavily for Romney. He would very difficult to stop at this point with only one other candidate in the race, let alone both Santorum and Gingrich.
Gingrich has to realize he's done at this point. There just aren't enough southern states left.
