The proof of the pudding is the all out establishment attack on Newt. They ignore Santorum. He isn't a threat to the status quo. Newt is. A BIG threat. They hated him as Reagans Lieutenant and they hated him in 94. They still fear him. Hence the attacks.
Santorum continues his vanity run.
A vote for Santorum is a vote for Romney.
Newt was the big tent strategic party builder not the principled conservative. Newt was one of many republican “rock stars” in 94 Santorum was another. Santorum was winning for conservatism long after Newt had quit.