Peru&#039;s presidential candidate Ollanta Humala of the political party Gana Peru, right, greets supporters as he arrives to the headquarters of Peru&#039;s main workers&#039; union in Lima, Peru, Thursday, May 19, 2011. Humala will face Keiko Fujimori, daughter of former Peru&#039;s President Alberto Fujimori, in a presidential runoff next June 5. (AP Photo/Martin Mejia)