RIYADH, SAUDI ARABIA - MAY 20:  (----EDITORIAL USE ONLY  MANDATORY CREDIT - "BANDAR ALGALOUD / SAUDI ROYAL COUNCIL / HANDOUT" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) U.S. President Donald Trump is welcomed by Saudi Arabia's King Salman bin Abdulaziz Al Saud during his arrival at the King Khalid International Airport in Riyadh, Saudi Arabia on May 20, 2017. (Photo by Bandar Algaloud / Saudi Royal Council / Handout/Anadolu Agency/Getty Images)