The resurgent Newt Gingrich, fresh from his decisive win in South Carolina, arrived in the Sunshine State yesterday hoping to quickly make up ground in a state where his rival Mitt Romney has been campaigning hard for months. The former House Speaker trails Romney by double-digits, according to the most recent polls - although by most accounts, that lead will narrow, possibly even evaporate, in the days leading to the Jan. 31 presidential primary here. Romney, the former Massachusetts governor, and his supporters have already poured millions of dollars as part of a massive assault, by air and by ground, to retake momentum in the race for the presidency.