Iran's Leadership Transition Begins After Supreme Leader Khamenei's Death

Following the death of Supreme Leader Ali Khamenei in a joint U.S.-Israeli strike, Iran held a six‑day mourning period culminating in a state funeral in Mashhad. The government installed a three‑member interim council comprising President Masoud Pezeshkian, judiciary chief Gholam‑Hossein Mohseni‑Ejei and Ayatollah Alireza Arafi, while the 88‑member Assembly of Experts prepares to select a permanent successor. The transition, the first real test of Iran’s clerical system since its 1979 revolution, will shape Tehran’s nuclear diplomacy, regional proxy activities and domestic repression policies.

Concurrently, Iran’s ruling establishment is experiencing intensified factional infighting. State‑run media and officials now openly criticize rival hardliners using language once reserved for democratic opponents, accusing each other of “fanaticism,” “medieval thinking,” and “ideological fantasy.” Analysts view this internal conflict as a symptom of the regime’s eroding legitimacy after years of protest, repression, and strategic setbacks, signaling deeper instability within the Islamic Republic’s power structures.