Per this poll, if nobody could vote absentee, Santorum could have broken 20%, but they do, and he has left the state for a couple of days, and apparently isn't get much in the way of crowds or traction. His percentage might have much to do with whether Newt does a big money dump in Florida, but he hasn't so far, but says he will in the last few days. Somehow I doubt that he will. Newt is getting big crowds however. He makes for great theatre.
Santorum left the state because his daughter is hospitalized. Newt's crowds were lower today, according to NBC.