Republican primaries 2012 (56 images)

Republican presidential hopeful Ron Paul signs autographs for supporters after speaking at a campaign rally on January 2, 2012 in Cedar Rapids, Iowa. UPI/Brian Kersey

Republican presidential hopeful Texas Gov. Rick Perry encourages his supporters at a campaign rally on January 2, 2012 in Perry, Iowa. UPI/Brian Kersey

Republican presidential hopeful Rick Santorum shakes hands as he walks through Valley High School on his way to a 'Rock the Caucus' rally in the school's gymnasium on January 3, 2012 in West Des Moines, Iowa. UPI/Brian Kersey

A supporter of Republican presidential hopeful Mitt Romney holds up a sign at Romney's caucus night rally on January 3, 2012 in Des Moines, Iowa. UPI/Brian Kersey