(FILES) This file photo taken on September 3, 2014 shows former US Secretary of State Colin Powell during a ceremony to break ground on the US Diplomacy Center at the US State Department in Washington, DC. Former US secretary of state Colin Powell dubbed Donald Trump a "national disgrace" and an "international pariah" in personal email exchanges hacked and leaked online. The leaked correspondence reveals a stinging indictment of the brash billionaire by a cabinet member in the last Republican president's administration, albeit one who twice endorsed Barack Obama for president. / AFP PHOTO / JIM WATSONJIM WATSON/AFP/Getty Images