Nearly 50 years after the 1979 Islamic Revolution overthrew his father, exiled Crown Prince Reza Pahlavi has spurred demonstrators onto the streets in a massive escalation of the protests sweeping Iran. But Pahlavi’s call, rebroadcast by Farsi-language satellite news channels and websites abroad, raises questions about both his influence and the ultimate aim of the demonstrators in the streets. Iranian state media has for years mocked the 65-year-old Pahlavi, who lives in exile in the United States, as being out of touch and corrupt. President Donald Trump and other world leaders have been hesitant to embrace him.