File photo of U.S. Republican presidential candidate U.S. Rep. Ron Paul waving before the start of the Republican presidential candidates debate in Mesa

 
File photo of U.S. Republican presidential candidate U.S. Rep. Ron Paul waving before the start of the Republican presidential candidates debate in Mesa
U.S. Republican presidential candidate U.S. Rep. Ron Paul (R-TX) waves before the start of the Republican presidential candidates debate in Mesa, Arizona, in this February 22, 2012, file photo. Paul announced that he will no longer actively campaign in new states, May 14, 2012. REUTERS/Laura Segall/Files (UNITED STATES - Tags: POLITICS ELECTIONS)