What Happened
- Supreme Leader Ayatollah Ali Khamenei was killed on February 28, 2026 in a joint US-Israeli military strike on Tehran, marking the end of his 35-year tenure as Iran's second Supreme Leader.
- Iranian state media confirmed his death on March 1, 2026.
- Under Iran's constitution, an interim council assumes executive functions while the Assembly of Experts — a body of 88 Islamic clerics — deliberates on the selection of a new Supreme Leader.
- Mojtaba Khamenei, son of Ayatollah Khamenei, has been cited by multiple sources as the most likely successor, though his elevation would be constitutionally unprecedented (hereditary succession is not formalised).
- Iran launched retaliatory strikes on US and Israeli assets across the region following Khamenei's assassination.
- Since 1979, Iran has had only two Supreme Leaders — Ayatollah Ruhollah Khomeini (1979-1989) and Ayatollah Ali Khamenei (1989-2026).
Static Topic Bridges
Iran's Constitutional Structure: The Supreme Leader
Iran's political system, established by the 1979 Islamic Revolution and codified in the Constitution of the Islamic Republic of Iran, blends theocratic and republican elements. The Supreme Leader (Rahbar) is the highest authority in the state, appointed for life and not subject to electoral accountability.
- Under Article 5 and Article 107 of Iran's constitution, the Supreme Leader is selected by the Assembly of Experts — a body of 88 Islamic jurists elected by popular vote.
- The Supreme Leader exercises direct command over the armed forces, the Islamic Revolutionary Guard Corps (IRGC), the judiciary, and state media.
- The position has no fixed term — the Supreme Leader serves until death, resignation, or dismissal by the Assembly of Experts.
- The Supreme Leader can overrule the President and Parliament (Majlis) on all matters of state.
- Khomeini held the position from 1979 until his death in 1989; Khamenei from 1989 until 2026.
Connection to this news: The death of Khamenei without a formally designated successor triggers a constitutionally defined but politically fraught succession process with significant geopolitical implications.
The Assembly of Experts and Supreme Leader Selection (Article 107)
The Assembly of Experts (Majlis-e Khobregan) is a constitutional body tasked with appointing, supervising, and if necessary dismissing the Supreme Leader. It is composed of 88 Islamic clerics (fuqaha) elected by popular vote for 8-year terms.
- Under Article 107, the Assembly must select a new Supreme Leader from among qualified Islamic jurists meeting criteria specified in Article 109 (Islamic jurisprudential expertise, political acumen, just and pious character).
- In the absence of an overwhelming consensus candidate, the Assembly may elect a Leadership Council (as occurred briefly after Khomeini's death before Khamenei was selected).
- The Vice-Presidency of the Supreme Leader was abolished in the 1989 constitutional revision, leaving no automatic successor.
- Qualifications under Article 109: knowledge of Islamic jurisprudence (fiqh), justice and piety, correct political and social insight, and administrative capability.
Connection to this news: The Assembly of Experts must now convene to select Iran's third Supreme Leader — a process that could be prolonged, contested, and accompanied by factional struggles within Iran's clerical establishment.
The IRGC and Iran's Parallel Power Structure
The Islamic Revolutionary Guard Corps (IRGC) is a military-ideological institution parallel to Iran's regular armed forces, created after the 1979 revolution to protect the Islamic system. The IRGC controls significant economic assets and wields political influence beyond its military mandate.
- The IRGC is answerable directly to the Supreme Leader, not the elected President.
- Its Quds Force (external operations wing) has been a key instrument of Iranian influence across the Middle East — in Iraq, Syria, Lebanon (Hezbollah), Yemen (Houthis), and Gaza (Hamas).
- The IRGC controls an estimated 10-20% of Iran's economy through affiliated foundations and companies.
- The US designated the IRGC as a Foreign Terrorist Organization (FTO) in 2019.
- In a succession crisis, the IRGC's stance toward the new Supreme Leader will be decisive for political stability.
Connection to this news: The IRGC's institutional loyalty during the succession process will determine whether Iran's retaliatory strikes against the US and Israel represent a coherent state strategy or a fractured response.
Iran's Dual-Track Political System: President vs. Supreme Leader
Iran's constitution establishes a hybrid system where an elected President heads the government but operates within limits set by the unelected Supreme Leader.
- The President is elected every four years by popular vote and heads the Council of Ministers.
- The Expediency Council mediates disputes between Parliament (Majlis) and the Guardian Council.
- The Guardian Council (12 members — 6 Islamic jurists appointed by the Supreme Leader + 6 legal experts nominated by the judiciary) vets all legislation and election candidates.
- The President cannot override the Supreme Leader's directives on foreign policy, security, or ideology.
Connection to this news: During the interregnum period before a new Supreme Leader is selected, the distribution of power between the President, IRGC, and interim council creates institutional uncertainty that has direct implications for Iran's foreign policy behaviour.
Key Facts & Data
- Ayatollah Khomeini founded the Islamic Republic after the 1979 revolution against the Pahlavi monarchy.
- Iran's constitution was adopted in 1979 and substantially revised in 1989 (eliminating the post of Prime Minister, strengthening the Supreme Leader's powers).
- The Assembly of Experts has 88 members; all must be qualified Islamic clerics (mujtahids).
- Mojtaba Khamenei, if selected, would be the first case of hereditary succession in post-revolutionary Iran — a model the constitution does not explicitly provide for.
- Iran's constitution allows for a temporary Leadership Council if no single candidate achieves consensus.
- The IRGC has approximately 190,000 active military personnel plus Basij militia reserves.
- Iran has had two Supreme Leaders in its 47-year history as an Islamic Republic.