US President Donald Trump (C-L), Saudi Arabia's King Salman bin Abdulaziz al-Saud (C-R), Jordan's King Abdullah II (3-R), Egyptian President Abdel Fattah al-Sisi (2-R) and other officials pose for a group photo during the Arab Islamic American Summit at the King Abdulaziz Conference Center in Riyadh on May 21, 2017. / AFP PHOTO / MANDEL NGAN        (Photo credit should read MANDEL NGAN/AFP/Getty Images)