(FILES) This file photo taken on May 7, 2012 shows former US Secretary of State Colin Powell as he speaks before presenting Britain's Prince Harry the Distinguished Humanitarian Leadership Award during the Atlantic Council 2012 Annual Awards Dinner at a hotel 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 / JEWEL SAMADJEWEL SAMAD/AFP/Getty Images

Assistant to the President for Homeland Security and Counterterrorism and former National Security Division Assistant Attorney General Lisa Monaco speaks during an interview with Aspen Institute President and CEO Walter Isaacson during a conference between The Center for Strategic (CSIS) and International Studies and the Justice Department at the CSIS building September 14, 2016 in Washington, D.C. The National Security Division (NSD) of the US Department of Justice was created after 9/11 to integrate law enforcement, intelligence, and other government tools in the fight against national security threats. September 2016 marks NSD's 10-year anniversary since commencing operations / AFP PHOTO / ZACH GIBSONZACH GIBSON/AFP/Getty Images

Assistant to the President for Homeland Security and Counterterrorism and former National Security Division Assistant Attorney General Lisa Monaco speaks during an interview with Aspen Institute President and CEO Walter Isaacson during a conference between The Center for Strategic (CSIS) and International Studies and the Justice Department at the CSIS building September 14, 2016 in Washington, D.C. The National Security Division (NSD) of the US Department of Justice was created after 9/11 to integrate law enforcement, intelligence, and other government tools in the fight against national security threats. September 2016 marks NSD's 10-year anniversary since commencing operations / AFP PHOTO / ZACH GIBSONZACH GIBSON/AFP/Getty Images

Assistant to the President for Homeland Security and Counterterrorism and former National Security Division Assistant Attorney General Lisa Monaco speaks during an interview with Aspen Institute President and CEO Walter Isaacson during a conference between The Center for Strategic (CSIS) and International Studies and the Justice Department at the CSIS building September 14, 2016 in Washington, D.C. The National Security Division (NSD) of the US Department of Justice was created after 9/11 to integrate law enforcement, intelligence, and other government tools in the fight against national security threats. September 2016 marks NSD's 10-year anniversary since commencing operations / AFP PHOTO / ZACH GIBSONZACH GIBSON/AFP/Getty Images

(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

Myanmar's State Counsellor Aung San Suu Kyi arrives at the White House for a bilateral meeting with U.S. President Barack Obama in Washington, D.C., U.S. September 14, 2016. REUTERS/Carlos Barria

WASHINGTON, DC - SEPTEMBER 14: State Counsellor Aung San Suu Kyi of Burma arrives outside the West Wing for an Oval Office meeting with U.S. President Barack Obama at the White House September 14, 2016 in Washington, DC. This is the first visit to Washington since Aung San Suu Kyi and her partyÕs landslide win in the November elections last year in Burma. (Photo by Alex Wong/Getty Images)

WASHINGTON, DC - SEPTEMBER 14: State Counsellor Aung San Suu Kyi (R) of Burma arrives as she is greeted by Chief of Protocol Ambassador Peter Selfridge (L) outside the West Wing for an Oval Office meeting with U.S. President Barack Obama at the White House September 14, 2016 in Washington, DC. This is the first visit to Washington since Aung San Suu Kyi and her partyÕs landslide win in the November elections last year in Burma. (Photo by Alex Wong/Getty Images)