Role Reversal in Florida and Big Money in the Primary Campaign

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Romney's powerful showing in last night's debate could be crucial for the Republican presidential nomination. But a final burst of TV commercials from the Gingrich SuperPAC could make a difference. We hear about the Las Vegas billionaire who came up with $10 million and whether he's influenced the campaign. Also, the economy shows improvement, but is it enough? On Reporter's Notebook, the iPhone 4S and other challenges to limited bandwidth.

Banner image: Screen grab from CBS News, January 25, 2012