US Republican presidential candidate Mitt Romney greets supporters at a campaign rally in Miami on September 19, 2012. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)
US Republican presidential candidate Mitt Romney greets supporters at a campaign rally in Miami on September 19, 2012. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)