Romney, Gingrich focus on Hispanic voters in Fla.

Paul has already made clear his intention to skip Florida in favor of smaller, less-expensive states. On Friday, he began a two-day stretch of campaigning in snowy Maine.

Santorum, who had been campaigning aggressively here, conceded that he's better off sitting at his kitchen table Saturday doing his taxes instead of campaigning in a state where he can't keep up with the GOP front-runners.

Outside advisers were urging him to pack up in Florida completely and not spend another minute in a state where he is cruising toward a third straight loss.

The cash-strapped Santorum said he'll make a handful of Florida campaign stops but will finish Friday with his family in Pennsylvania, where he'll spend all day Saturday. He planned to return to Florida for campaign events on Sunday.