Santorum campaign gains momentum after primary wins

LAFAYETTE, LA - MARCH 13:  Republican presidential candidate, former U.S. Sen. Rick Santorum addresses supporters after winning the both Alabama and Mississippi primaries on March 13, 2012 in Lafayette, Louisiana. LouisianaÕs primary will be decided on March 24th. (Photo by Sean Gardner/Getty Images)
LAFAYETTE, LA - MARCH 13:  Republican presidential candidate, former U.S. Sen. Rick Santorum addresses supporters after winning the both Alabama and Mississippi primaries on March 13, 2012 in Lafayette, Louisiana. LouisianaÕs primary will be decided on March 24th. (Photo by Sean Gardner/Getty Images)

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    Santorum's pair of primary wins

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Santorum's pair of primary wins 03:13

John Brabender, senior strategist for the Santorum campaign, discusses the possibility of a brokered GOP convention and responds to Romney's criticism of his candidate.