Mitt Romney is heavily favored in today's Florida primary.
And it could be a significant win. Republican Sen. Marco Rubio of Florida tells CNN that whoever wins the state's primary is "in all likelihood" going to be the nominee.
But Newt Gingrich is having none of that talk. Outside a polling place today, he said the race won't be decided until summer -- unless Romney drops out.
Gingrich's campaign is bragging that he has raised more than $5 million in January.
Rick Santorum, meanwhile, says Gingrich shouldn't be urging him to drop out of the primaries. The former Pennsylvania senator was responding to remarks by Gingrich suggesting other conservatives need to coalesce around him to keep Mitt Romney from winning the party nomination.
Santorum says he thinks he's the better, more conservative candidate himself -- but that wouldn't justify asking Gingrich to quit.