CNN / Time poll: Romney 36 / Gingrich 34 / Santorum 11 / Paul 9

Gingrich was at 18% support in Florida and trailed Romney by 25 points in CNN's last poll in the state, which was conducted Jan. 13-17.

On Sunday, the day after Gingrich won big in South Carolina, he was at 38% in Florida, with Romney at 36%, Santorum at 11% and Paul at 8%. Looking only at Monday and Tuesday's results, Romney was at 38%, Gingrich 29% Santorum at 11% and Paul at 9%.

"Gingrich's post-Palmetto State bounce did not last long," says CNN Polling Director Keating Holland. "Monday's debate may have something to do with that, but the data indicate that the shift to Romney began before the debate started, so there are clearly other forces at work."

More here.