Santorum is not a viable candidate. Sorry.
I can’t see a guy that whines like Santorum as Commander in Chief.
They said that about Newt about three months ago. A lot can change very quickly. If Newt suddenly bombs you will regret Santorum having dropped out of the race.
Although I could vote for Newt in the general, frankly, I think many at FR have shown poor judgment in expecting that Mr. Gingrich will do what he has led them to believe. But then, I said that when so many fell for Arnold in California.