Santorum in White House race; 'In it to win'

Former U.S. Senator from Pennsylvania Rick Santorum addresses the National Rifle Association's 140th annual meeting, Friday, April 29, 2011 in Pittsburgh. (AP Photo/Keith Srakocic)

June 6, 2011 8:35:27 AM PDT
Former Pennsylvania Sen. Rick Santorum, once the No. 3 Republican in the Senate, said Monday he's seeking the GOP nomination for president, vowing he's "in it to win."

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