ORLANDO -
The race for the GOP presidential nomination probably is far from over.
Front-runner Mitt Romney's rivals are refusing to bow out despite his resounding Florida victory.
New rules for awarding delegates to the Republican convention this summer give even losing candidates little incentive to drop out.
And so-called "super" political action committees have proven they can keep even the most cash-strapped campaigns alive by accepting unlimited donations from individuals to run ads on their
behalf.
But a string of defeats throughout February will increase pressure on losing candidates to take stock as Republicans look to the fall - and to President Barack Obama.
