Understanding Who Runs Iran
Lets start with who actually runs Iran
Iran is not a normal presidential system; it is a theocratic republic where the Supreme Leader sits above every other institution. The current Supreme Leader, Mojtaba Khamenei, inherited the role after the death of his father, Ali Khamenei, and ultimately controls foreign policy, the military, intelligence, and nuclear strategy. Under Iran’s constitution, the Supreme Leader sets “general policies” of the Islamic Republic and supervises all branches of government through powers like appointing military chiefs, vetting key ministers, and overriding legislation. The elected president runs day‑to‑day government but answers to the Supreme Leader and cannot cut a major nuclear or security deal without his backing.
The Security Core: IRGC and Security Council
Beneath the Supreme Leader is a tight security network that matters more than cabinet titles. The Islamic Revolutionary Guard Corps (IRGC) controls strategic weapons programs, ballistic missiles, and much of Iran’s activity in the Strait of Hormuz, and its commanders are appointed by, and loyal to, the Supreme Leader. The Supreme National Security Council, chaired by the president but stacked with military chiefs, key ministers, and Supreme Leader representatives, is the main body that shapes nuclear and maritime security policy and approves negotiation mandates. In practice, if the IRGC and the Supreme National Security Council are not on board, no paper signed by Iran’s diplomats will be implemented.
Who the U.S. Is Really Negotiating With
On paper, U.S.–Iran nuclear diplomacy looks like foreign ministers and technical experts trading redlines over centrifuges and enrichment timelines. In reality, Washington is negotiating with three Iranian “addresses” at once: the Supreme Leader’s office (which decides what is ultimately acceptable), the Supreme National Security Council (which designs the package), and the IRGC (which controls the on‑the‑ground levers of pressure). Current talks focus on how long Iran will halt or cap uranium enrichment—U.S. officials have floated a 20‑year moratorium, while Iran has publicly pushed closer to five years, reflecting Tehran’s desire to preserve a latent nuclear capability. Any agreement that does not satisfy the Supreme Leader’s political calculus and the IRGC’s security concerns is unlikely to survive domestic pushback in Tehran.
The Strait of Hormuz: Iran’s Real Leverage
Iran has increasingly used the Strait of Hormuz, through which a large share of global seaborne oil passes, as a strategic pressure point rather than relying solely on its nuclear program. Iranian forces—largely IRGC Navy units—have harassed tankers and, more recently, imposed a partial blockade, signaling that Tehran can impose costs on global energy flows as long as negotiations remain stalled. Analysts note that while the U.S. Navy can reopen the Strait, doing so would be slow and costly, allowing Iran to repeatedly raise the economic and political price of any confrontation. For markets, that means Iranian decisions in Hormuz can now move oil prices as efficiently as headlines about centrifuges, making maritime security a core component of the “real” nuclear bargain.
Who Washington Should Aim at Now
For U.S. policymakers and investors trying to understand the next phase, the key is recognizing where influence actually sits in Tehran. Negotiations will continue to be conducted by Iran’s diplomats and the president, but the United States should calibrate its offers—and its pressure—toward the Supreme Leader’s office and the IRGC, because they control both uranium decisions and the Strait of Hormuz playbook. That means crafting proposals that bundle nuclear constraints with maritime assurances and sanctions relief in ways that can be sold inside Iran’s security establishment as a net gain, not a capitulation. For market participants, understanding this internal power map is essential to reading the risk premium on oil, the durability of any future deal, and the probability that brinkmanship over Hormuz escalates into actual disruption.
