Santorum needs to drop out and endorse Newt.
Newt needs to be able to get women voters.
And, Newt needs to get some cash...fast.
If Santorum thinks he has a chance for Romney’s VP, he’ll stay in and buffer a win for Romney. He could care less about Newt.
For Newt to win, he’d have to get the support of Sarah Palin and announce that she’ll be his VP if victorious.