Realistically, Gingrich has likely lost Florida. But it makes an enormous difference how big or small Romney’s lead is for Gingrich’s viability going forward. If Gingrich remains reasonably close, he can maintain popular support and fund-raising ability, and pick up some delegate-rich upcoming states.
Florida has 50 delegates. But Texas - primary on April 3rd - which Gingrich would surely win, has 155. And it’s not just Texas. A state like Minnesota - which I never thought of as a conservative bastion - has 40 delegates, and Gingrich is heavily favored in the latest poll released 1/25 (Gingrich 36 v. Romney 18):
Pray for Santorum’s family, for those who just heard the news on C-Span.