Republican presidential candidate former Pennsylvania Sen. Rick Santorum, left, waves to a member of the audience as former House Speaker Newt Gingrich looks on, prior to a debate Thursday, Sept. 22, 2011, in Orlando, Fla. (AP Photo/Phelan M. Ebenhack)

Associated Press
Republican presidential candidate former Pennsylvania Sen. Rick Santorum, left,  waves to a member of the audience as former House Speaker Newt Gingrich looks on, prior to a debate Thursday, Sept. 22, 2011, in Orlando, Fla.  (AP Photo/Phelan M. Ebenhack)
Republican presidential candidate former Pennsylvania Sen. Rick Santorum, left, waves to a member of the audience as former House Speaker Newt Gingrich looks on, prior to a debate Thursday, Sept. 22, 2011, in Orlando, Fla. (AP Photo/Phelan M. Ebenhack)
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