The killing of Ayatollah Ali Khamenei by the United States and Israel has sparked the complex process of finding his successor. The Islamic Republic has only replaced its supreme leader once since it swept to power nearly half a century ago.

The killing of Ayatollah Ali Khamenei by the United States and Israel has sparked the complex process of finding his successor. The Islamic Republic has only replaced its supreme leader once since it swept to power nearly half a century ago.