• Florida primary election results
• Romney crushes Gingrich in Florida GOP primary
• With win, Romney faces tough opponents in long war
• Why Romney won — Why Gingrich lost
• After loss, Gingrich pledges long primary fight
• Exit polls: Florida GOP voters hurt by economy
ORLANDO, Fla. — Outside fundraising groups called super PACs have spent roughly $44 million, mostly in attack ads, in opening weeks of what the Republican presidential candidates promise will be a long and protracted primary fight.
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