What's next for Iran after Ebrahim Raisi died in helicopter crash?

Iranian President Ebrahim Raisi, a hardliner seen as a potential successor to Supreme Leader Ayatollah Ali Khamenei, was killed after his helicopter crashed in poor weather in mountains near the Azerbaijan border, officials and state media said on Monday (May 20). For more analysis, FRANCE 24's Nadia Massih is joined by Simon Mabon, lecturer in International Relations Middle East studies at Lancaster University.