Iran–US talks stall as Tehran’s internal power struggle deepens—what happens next?

Negotiations between the United States and Iran are described as moving at a crawl, with reporting highlighting a communications and coordination problem inside Tehran. A separate thread of coverage claims Iranian President Masoud Pezeshkian submitted a resignation letter to the Supreme Leader, arguing he is excluded from decision-making and that IRGC control constrains governance. Iranian officials reportedly rejected the resignation claim, but the very existence of the allegation signals heightened friction between elected institutions and the Islamic Revolutionary Guard Corps. Taken together, the cluster points to a bargaining environment where Washington may be negotiating with a system whose internal chain of command is contested, slowing approvals, messaging discipline, and deal implementation. Strategically, this matters because US-Iran diplomacy depends not only on negotiating positions but on the ability of Tehran’s leadership to authorize commitments across security, economic, and political channels. If IRGC influence is perceived as limiting the president’s room to maneuver, the risk rises that any interim understandings could be delayed, diluted, or contested domestically after signatures. That dynamic can benefit hardliners who prefer ambiguity and leverage over rapid normalization, while it disadvantages constituencies—inside Iran and in the US—that want predictable de-escalation and measurable sanctions or compliance outcomes. For Washington, the immediate challenge is distinguishing between tactical messaging delays and a deeper breakdown in internal Iranian consensus. Market and economic implications are indirect but potentially meaningful: stalled diplomacy tends to keep risk premia elevated for Middle East-linked energy and shipping exposures, even without a new kinetic event. The cluster does not provide specific oil price figures, but the direction of risk is toward higher volatility in crude and refined products expectations, along with firmer insurance and freight sensitivity for routes that traders associate with Iran-related contingencies. In addition, internal Iranian political uncertainty can affect expectations for sanctions compliance, banking channels, and the timing of any trade normalization that markets would price into FX and sovereign risk. For investors, the key takeaway is that “process risk” is rising—delays and reversals can matter as much as headline outcomes. What to watch next is whether Tehran’s leadership clarifies the president’s status and decision authority, and whether US negotiators receive consistent, actionable signals rather than fragmented updates. Trigger points include any formal confirmation or denial of the resignation letter by senior Iranian institutions, changes in IRGC-linked messaging, and signs that Supreme Leader-level directives are being routed through a more centralized channel. On the US side, monitor whether Washington adjusts its negotiating posture—such as tightening timelines, expanding verification demands, or shifting to narrower interim steps. If internal friction persists, escalation risk may remain “non-kinetic” but still material through sanctions enforcement intensity, cyber or maritime harassment rumors, and renewed bargaining leverage; if consensus improves, the trend could quickly de-escalate through renewed talks cadence.

Geopolitical Implications

• 01

  Internal Iranian power friction can undermine the credibility and durability of any US-Iran diplomatic commitments.

• 02

  Hardliners may gain leverage from delays, while moderates face constraints that reduce their ability to deliver rapid concessions.

• 03

  US negotiators may need to adjust verification, sequencing, and interim-step design to account for contested authorization inside Iran.

Key Signals

• —Formal confirmation or denial of the resignation letter through named Iranian institutions.
• —Shifts in IRGC-linked messaging on negotiations and governance authority.
• —Evidence of consistent Supreme Leader-level authorization for specific deal steps.
• —US posture changes: timeline tightening, narrower interim proposals, or altered sanctions-compliance expectations.