By bne Tehran bureau With the death of Iranian President Ebrahim Raisi in a helicopter crash on May 19, many are wondering what happens next in the country of more than 80 million people. Based on the Constitution, the first vice president, Mohammad Mokhber, will take charge as caretaker president with the nod of the Leader, Ayatollah Ali Khamenei, until an election is held within a maximum of 50 days. There is no clear leader currently who will lead the country after the next election and which person will take over from Khamenei when he dies—previously tipped to be Ebrahim Raisi, who had bee…