Iranian girls show their hands, marked with the words "Down with USA," at Monday's demonstration in Tehran. Abedin Tahrkenareh /EPA/LANDOV hide caption

itoggle caption Abedin Tahrkenareh /EPA/LANDOV

Former Iranian President Akbar Hashemi Rafsanjani's candidacy for the country's presidency was rejected Tuesday by the powerful Guardian Council. He's seen here on May 11 registering his candidacy for the June 14 election. Ebrahim Noroozi/AP hide caption

itoggle caption Ebrahim Noroozi/AP

Iran's Supreme Leader Ayatollah Ali Khamenei in 2009. Behrouz Mehri /AFP/Getty Images hide caption

itoggle caption Behrouz Mehri /AFP/Getty Images