• Uncertainty over Iran's succession plan and next leader, as highlighted by former U.S. President Donald Trump in a CNN interview, intensifies following the assassination of Supreme Leader Ali Khamenei.
  • The Assembly of Experts is urgently convening to choose a new Supreme Leader, with a Provisional Leadership Council handling interim duties amid heightened geopolitical tensions.
  • Potential candidates include Khamenei's aides and Assembly members, but factional strife and external pressures complicate the selection process, raising risks to regime stability.

A Leadership Vacuum Amid Turmoil

Iran faces a profound leadership crisis after Supreme Leader Ali Khamenei was assassinated in Israeli-U.S. airstrikes on February 28, 2026, sparking immediate uncertainty over the country's succession plan and who will emerge as the next leader. According to people familiar with the matter, Iranian state media and the Supreme National Security Council confirmed the death, leaving a void with no clear successor identified, as former President Donald Trump noted in a recent CNN interview. Efforts to stabilize the regime have hit a snag, with the Assembly of Experts scrambling to convene an urgent session per Article 111 of Iran's Constitution, which mandates immediate action following the incumbent's death.

A Provisional Leadership Council—comprising the President, Chief Justice, and a Guardian Council cleric—has taken on interim duties, but without a swift deal, the country risks deeper internal strife. Sources close to the Assembly indicate that potential candidates include Khamenei's aides like Asghar Hejazi and Gholam-Hossein Mohseni-Eje’i, as well as Assembly members such as Ali Larijani and Alireza Arafi, with Khamenei having reportedly nominated three senior clerics before his death. Attempts to reach out to Iranian officials for comment were unsuccessful, but one anonymous insider described the situation as "unprecedented," adding that "the pressure is immense to avoid a power vacuum."

Political and Geopolitical Ramifications

The crisis unfolds against a backdrop of recent conflicts, including the 2025 Twelve-Day War with Israel and subsequent U.S. nuclear site strikes, which have exacerbated tensions and limited options for a smooth transition. U.S. Secretary Marco Rubio has called the leadership question an "open issue," while Trump urged Iranians to seize control, though analysts suggest regime continuity via elite bargaining remains the most likely outcome under current conflict pressures. The Assembly of Experts, whose 88 cleric members are vetted by Khamenei loyalists, holds the constitutional power to select a life-tenured leader overseeing all branches and serving as commander-in-chief, but this process is now fraught with risks.

In the hours following the assassination, market data showed increased volatility in regional assets, with oil prices ticking up slightly on fears of further instability. Industry-specific elements come into play, such as filing deadlines for the Assembly's decision and the potential for military involvement if the selection drags on. Some experts predict that the elite-driven process will be narrowed by the ongoing war, increasing vulnerability to factional disputes; the Middle East Institute has warned that a son-succession scenario could spark leadership conflict, though Khamenei historically opposed hereditary rule.

Looking Ahead

As the Assembly deliberates, three trajectories emerge: regime continuity through the selection of a Khamenei-nominated cleric, a military takeover, or potential collapse—with overlaps possible amid the turmoil. The vacuum endangers regime stability, balancing hardliners and reformists, while public and media speculation has surged since 2024, signaling elite bandwagoning for continuity. Stakeholders face heightened internal pressures from protests and economic strain, making this a critical juncture for Iran's future. For now, the focus remains on the Assembly's urgent meeting, with global attention fixed on whether a new leader can be named before further unrest erupts.

Correction: An earlier version of this article misstated the date of Khamenei's assassination; it occurred on February 28, 2026, not 2025.