The Prince and the President: Khashoggi Disappearance Raises Tensions

FILE -- President Recep Tayyip Erdogan of Turkey addresses the U.N. General Assembly at U.N. headquarters in New York, Sept. 25, 2018. Erdogan and Mohammed bin Salman, Saudi Arabia’s crown prince, have not had the easiest relationship, even before the disappearance of Jamal Khashoggi. (Chang W. Lee/The New York Times)