Republican Sen. Lindsey Graham publicly questions Pakistan’s ability to serve as a mediator in negotiations between the United States and Iran. Graham says he does not trust Pakistan’s mediation role, citing concerns that have surfaced in U.S. discussions about the stalled status of talks and Iran’s reactions to U.S. peace proposals.

One reported basis for Graham’s skepticism is related to an “Iran aircraft row,” in which claims have circulated that Iranian military aircraft used Pakistani bases. According to the reports, Pakistan denies these allegations, saying any aircraft activity was connected to diplomatic arrangements.

The accounts also describe broader scrutiny within the Trump administration of Pakistan’s role as a mediator, with U.S. officials and lawmakers weighing whether Pakistan can support a lasting agreement. Overall, the outlets present the dispute as centered on Graham’s credibility concerns, Pakistan’s denial of aircraft-related claims, and the lack of progress in U.S.-Iran negotiations that has heightened attention to mediation efforts.