RIYADH, SAUDI ARABIA - MAY 21:  (----EDITORIAL USE ONLY  MANDATORY CREDIT - "BANDAR ALGALOUD / SAUDI KINGDOM COUNCIL / HANDOUT" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Crown Prince of Abu Dhabi Mohammed bin Zayed Al Nahyan (L), U.S. President Donald Trump (2nd L), Saudi Arabia's King Salman bin Abdulaziz Al Saud (,C), King Abdullah II bin al-Hussein (2nd R) of Jordan and President of Egypt Abdel Fattah el-Sisi (R) pose for a family photo during the Arabic Islamic American Summit at King Abdul Aziz International Conference Center in Riyadh, Saudi Arabia on May 21, 2017. (Photo by Bandar Algaloud / Saudi Kingdom Council / Handout/Anadolu Agency/Getty Images)