CENTRAL FLORIDA,None - Mitt Romney collided with Newt Gingrich on Tuesday in the Florida primary, by far the biggest so far, in a Republican presidential race growing steadily more negative with no quick end in sight.
Romney was looking strong in pre-election polls in Florida, but Gingrich said the race for the nomination was far from over. Former Sen. Rick Santorum and Texas Rep. Ron Paul conceded the state to their two rivals.
The winner-take-all primary was worth 50 Republican National Convention delegates.
But the bigger prize was precious political momentum in the race to pick an opponent for Democratic President Barack Obama this fall. That belonged to Romney when he captured the New Hampshire primary three weeks ago, then swung stunningly to Gingrich when he countered with a South Carolina upset 11 days later.
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Gingrich swept into Florida, only to run headlong into a different Romney from the one he had left in his wake in South Carolina.
The town of Celebration lived up to its name on Tuesday.
Gingrich never addressed the crowd. Instead, he met each person one-on-one.
It was a long meet and greet that took an hour, before Gingrich's team cut off the line.
"He was able to bring together the congress and worked well with president Clinton. We need someone to put aside their differences," said supporter Cathy Melton said.
Gingrich said he would stay in the race, continuing on until the Republican convention.
"The goal is to push on. We're moving on to the next state," said supporter Scarlett Williams.
Romney, the former Massachusetts governor, shed his reluctance to attack Gingrich, the former House speaker, unleashing hard-hitting ads on television, sharpening his performance in a pair of debates and deploying surrogates to the edges of Gingrich's own campaign appearances, all in hopes of unnerving him.
Restore our Future, an outside group supporting Romney, accounted for about $8.8 million in the ad wars, and the candidate and the "super PAC" combined outspent Gingrich and Winning The Future, the organization backing him, by about $15.5 million to $3.3 million, an advantage of nearly 5-1.
Gingrich responded by assailing Romney as a man incapable of telling the truth and vowed to remain in the race until the Republican National Convention next summer. He won the endorsement of campaign dropout Herman Cain and increasingly sought the support of evangelicals and tea party advocates, a former House speaker running as the anti-establishment insurgent of the party he once helped lead.
Bombarded by harsh television advertising, some Floridians said they had soured on both candidates.
"The dirty ads really turned me off on Mitt Romney," said Dorothy Anderson, of Pinellas Park, adding she was voting for Gingrich. She said of Romney, "In fact if he gets the nomination, I probably won't vote for him."
At the same polling place, Romney supporter Curtis Dempsey expressed similar feelings but about Gingrich. "The only thing Newt Gingrich has to offer is a big mouth," he said.
Voters frequently say they are offended or appalled by negative ads. But polls show consistently that the commercials are able to sway the opinions of large numbers of voters, and they are a staple of nearly all campaigns.
Santorum had no money for television ads to back up his strong debate performances. He left the state at one point, saying he was going home to Pennsylvania to prepare his income tax returns. But he stayed longer than anticipated, because of the hospitalization of his 3-year-old daughter with pneumonia. The girl has a rare genetic disorder, Trisomy 18.
Santorum and Paul both campaigned in Colorado on Tuesday as Florida Republicans were voting. The state has caucuses on Feb 7, the same day as Minnesota.
Even before that come caucuses in Nevada, a state that Romney won when he sought the nomination in 2008 and is favored to capture again.
By contrast, both Romney and Gingrich campaigned across Florida on primary day as the polls opened.
Exuding confidence, the former Massachusetts governor said -- even though the figures said otherwise -- that he had been outspent in South Carolina.
"I needed to make sure that instead of being outgunned in terms of attacks, that I responded aggressively, and hopefully that will have served me well here," he told reporters.
Gingrich, combative as usual, said the race for the nomination won't be decided until summer, "unless Romney drops out."
More than 600,000 Floridians voted before the polls opened, either by absentee or early ballot, exceeding the figure from four years ago, and raising the possibility of a record turnout. Vote totals in the three contests to date -- Iowa, New Hampshire and South Carolina -- have all been records.
The last polls will close at 8 p.m. on Tuesday.
Count on WFTV.com to bring you up to the minute results of the primary once the polls close Tuesday night. To find out where you can vote and to see the poll results, visit the Vote 2012 section