Jacksonville, Florida (CNN) -- One day before the final GOP presidential debate in Florida, it's all tied up between Mitt Romney and Newt Gingrich, according to a new survey.
A CNN/Time/ORC International Poll also indicates that while Gingrich surged following his 12-point victory in Saturday's South Carolina primary, his momentum appears to be quickly cooling off.
According to the poll, 36% of people likely to vote in Tuesday's Republican primary in the Sunshine State say they are backing Romney as the party's nominee, with 34% supporting Gingrich. The former Massachusetts governor's two point margin over the former House speaker is well within the survey's sampling error.
Former Sen. Rick Santorum of Pennsylvania is at 11% and Rep. Ron Paul of Texas is at 9%, with 7% unsure. The poll's Wednesday release comes one day before a CNN-Republican Party of Florida presidential debate at the University of North Florida in Jacksonville. The showdown is the last time the candidates will face off on the same stage before Tuesday's winner-take-all primary, where 50 delegates are up for grabs.
"In the wake of his double-digit victory in the South Carolina primary, Newt Gingrich has nearly doubled his support in Florida," says CNN Polling Director Keating Holland. "The current numbers are the result of some wild swings for and against the two frontrunners."
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.
The new survey was conducted Sunday through Tuesday, after the Palmetto State primary, and mostly before and partially after Monday night's Republican presidential debate in Tampa, where in a role reversal, Romney aggressively attacked Gingrich.
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," adds 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."
The poll indicates that Gingrich has a 10-point lead over Romney among self-described conservatives and appears to do better than Romney among born-again Christians and tea party movement supporters. The geography of the state appears to back that up -- Gingrich does five points better than Romney in the more conservative northern and central parts of Florida; Romney does better in Tampa Bay, Miami, and southern Florida, where moderates and northern transplants are more prevalent.
A gender gap appears to have developed as well. In South Carolina, Gingrich won among men and women, according to exit polls. But in Florida, although Gingrich has an edge among men, Romney had the advantage among women.
"Some of that may be due to recent coverage of Gingrich's personal life, but it is almost certainly due to other factors as well. Gingrich's favorable rating has consistently been higher among men than among women for years before he became a presidential candidate, suggesting that men may find his red-meat approach to issues more appealing than women do," says Holland.
With six days to go until Florida's GOP primary, which is only open to registered Republicans, one in four questioned said they may change their minds on which candidate they are supporting, while 64% said they are definitely sticking with the candidate they are currently backing.
The CNN/Time poll was conducted by ORC International from January 22-24, with 369 likely Florida GOP primary voters questioned by telephone. The survey's overall sampling error is plus or minus five percentage points.
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