I suspect santorum was in it to keep newt out. What huckabee did the religious useful idiots when they unwittingly gave us mccain. (see also fred thompson)
Santorum now (?) has a deal with Romney to pay down his debt. Newt is mathematically out.
If santorum pullout out b/4 florida the contest would be different and both romney and santorum know that.
agreed, if he back Romney then it will prove to many that he stayed in for a reason