Santorum may be losing support, but I think Newt is finished at this point. The attack ads and debate gaffes were just too much for him to handle.
If I had to pick someone to support, I would reluctantly vote for Santorum unless Newt was in the lead in my state.
Otherwise it's Mitt and then Obama has another four years to finish destroying freedom in America.
Whoever steps aside to stop Romney will be a national hero of Audie Murphy proportions—and if neither do and Mitt wins may they both be damned a traitors forever.