Reza Pahlavi, the exiled former crown prince of Iran, is positioning himself as the "transitional" leader if the Islamic Republic collapses. The big picture: Pahlavi has voiced confidence in President Trump and previously met with administration officials to address unrest inside Iran — relationships that could bolster his standing after the U.S.-Israel strike on Iran on Saturday. "The assistance that the President of the United States had promised to the brave people of Iran has now arrived," P...