Now it's Florida's turn. And Republican presidential rivals Mitt Romney and Newt Gingrich have just 10 days to navigate a state unlike any they've competed in so far. Florida is six times larger than New Hampshire, has almost five times more Hispanics than Iowa, and, with numerous media markets, is much more expensive for candidates than South Carolina. That's where ... Fresh off a big win in South Carolina, Republican Newt Gingrich found himself on defense Monday as the volatile GOP presidential contest shifted to Florida ... Fresh off his big South Carolina win, Republican Newt Gingrich found himself on the defensive Monday as the volatile GOP presidential contest shifted to Florida ... Mitt Romney and Newt Gingrich attack each other ahead of a debate in Florida on Monday, just days after Mr Gingrich's upset in the South Carolina primary ... Mitt Romney and Newt Gingrich attack each other ahead of a Republican debate in Florida, days after Mr Gingrich's upset in the South Carolina primary ... Columbia, South Carolina (Reuters) - Humbled by a stunning loss in South Carolina, Mitt Romney said on Sunday he would release this week the tax returns demanded by rivals as he bids to regain the upper hand in the volatile Republican presidential race ... TAMPA, Florida (Reuters) - Republican presidential candidate Mitt Romney on Monday sharpened his attacks on rival Newt Gingrich's business past and character ahead of a crucial debate in which Romney needs a strong performance to recharge his bid for the White House ... WASHINGTON (Reuters) - Republican presidential hopeful Mitt Romney promises to unveil his 2010 tax return on Tuesday, a filing his rivals will scrutinize for insights into how he became one of the wealthiest people to run for president in U.S. history ... | 
