U.S. Vice President Joe Biden speaks as prime minister of Turkey Recep Tayyip Erdogan looks on during a luncheon at the State Department in Washington, DC on May 16, 2013
Turkish President Recep Tayyip Erdogan listens to an interpreter as U.S. President Donald Trump makes a statement at the Palace Hotel during the 72nd United Nations General Assembly in New York on Sept. 21, 2017.
ANKARA, TURKEY - APRIL 17: Turkish President Tayyip Erdogan gives a referendum victory speech to his supporters at the Presidential Palace on April 17, 2017 in Ankara Turkey. Erdogan declared victory in Sunday's historic referendum that will grant sweeping powers to the presidency, hailing the result as a "historic decision. 51.4 per cent per cent of voters had sided with the "Yes" campaign, ushering in the most radical change to the country's political system in modern times.Turkey's main opposition calls on top election board to annul the referendum. OSCE observers said that a Turkish electoral board decision to allow as valid ballots that did not bear official stamps undermined important safeguards against fraud. (Photo by Elif Sogut/Getty Images)
Turkish nationalist protesters wearing Ottoman clothes shout slogans against Germany and hold placards on June 2, 2016 in front of the Germany consulate in Istanbul after German parliament labelled the World War I massacre of Armenians by Ottoman forces as genocide.
Turkish President Recep Tayyip Erdogan on June 2 warned that the German parliament's recognition of World War I killings of Armenians by Ottoman forces as genocide would "seriously affect" ties. / AFP / OZAN KOSE (Photo credit should read OZAN KOSE/AFP/Getty Images)
WASHINGTON, DC - MARCH 10: U.S. President Barack Obama prepares to sign a Presidential Memorandum on "Student Aid Bill of Rights" in the Oval Office of the White House on March 10, 2015 in Washington, DC. The memorandum will direct the Department of Education to assist borrowers in the ability to afford loan repayment. (Photo by Martin H. Simon - Pool/Getty Images)