Rick Santorum refused to rule out becoming Mitt Romney’s VP, reports CBN’s David Brody:

David Brody: “If he for some reason asks you to be the Vice Presidential candidate on his ticket? I know, after it’s all said and done. Would you even consider it?”
Rick Santorum: “Of course. I mean, look. I would do in this race as I always say, this is the most important race in our country’s history. I’m going to do everything I can. …
David Brody: “So, you’re keeping your options open.”
Rick Santorum: “I’ll do whatever is necessary to help our country.”