PBS NewsHour: With Romney Leading and No End in Sight, GOP Campaigns Carry on
Despite winning six states, Mitt Romney's Super Tuesday victories did little to winnow the GOP field. Rick Santorum, Newt Gingrich and Ron Paul picked up some delegates and continued campaigning ahead of more caucuses and primaries. Gwen talks to Trey Grayson of Harvard University, USA Today's Susan Page and the Pew Research Center's Andrew Kohut about the race.
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