February 28 & 29, 2012 (36 images)

Updated: March 1, 2012 at 2:03 PM
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Republican presidential hopeful Rick Santorum (C) stands on stage with his daughter Elizabeth and other supporters at a primary election night rally on February 28, 2012 in Grand Rapids, Michigan. Both Michigan and Arizona held their primaries for the GOP presidential nomination on Tuesday. UPI/Brian Kersey
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