US-Iran tensions, including stalled talks to end their ongoing conflict and friction over the Strait of Hormuz, continue to shape diplomatic expulsions of Iranian officials. The most recent catalyst is the US State Department's October 2026 action against two members of Iran's UN General Assembly delegation in New York, whom Washington described as overstaying after a formal departure order from Secretary Marco Rubio; Tehran rejected the expulsion framing and attributed the departures to a pre-notified schedule. Similar measures by Argentina, France, and Kuwait earlier in 2026 reflected accusations of interference or reciprocal disputes. Trader focus centers on whether additional countries will issue formal persona non grata declarations or equivalent actions by year-end amid these bilateral frictions.