The on-again, off-again diplomatic track between the US and Iran suffered yet another setback on Saturday after President Donald Trump called off his top officials’ trip to Pakistan for peace talks. The delegation, which was to have included Steve Witkoff, Trump’s special envoy, and Jared Kushner, his son-in-law and senior adviser, was grounded before it departed for Islamabad. Vice President JD Vance, who had been on standby to intervene personally should a significant breakthrough materialise, remained in Washington. Trump, offering his characteristically undiplomatic reasoning, said the Iranian officials in Pakistan were insufficiently senior to warrant the journey — "people that nobody ever heard of". The cancellation was announced on Truth Social, Trump's preferred platform for statecraft, where he declared with evident satisfaction: "We have all the cards, they have none." Telephone negotiations, he suggested, would suffice.
Trump wanted to send his team after an Iranian delegation led by Foreign Minister Abbas Araghchi had arrived in Pakistan on Friday. However, Tehran made it clear that its team was in Pakistan for a bilateral visit only and was not planning to engage with the US. “No meeting is planned to take place between Iran and the US,” Iranian foreign ministry spokesperson Esmaeil Baqaei wrote on X. And the Iranian team left Islamabad on Saturday.
The episode follows a pattern that has come to define this latest chapter of American engagement—or disengagement—with Iran. A fortnight ago, Vance walked out of a 21-hour negotiating session in Islamabad after presenting what his team described as a final offer. The Iranians declined it. The cycle of raised expectations and abrupt retreat has now repeated itself, leaving mediators across the region to manage the consequences of a process that appears structurally incapable of producing agreement.
At the heart of the impasse are demands that each side regards as existential. Washington is insisting on the complete and permanent cessation of Iran's uranium enrichment programme, the surrender of its existing stockpiles of enriched material, the dismantlement of its ballistic missile capabilities and an end to its material support for armed groups operating across the Middle East—from Lebanon and Gaza to Yemen and Iraq. American officials have been at pains to emphasise that these are not preliminary negotiating positions. They are, the administration insists, the irreducible minimum.
Tehran's response has been unequivocal. Iranian negotiators have argued, with some justification, that the American demands are more sweeping than anything required under the 2015 Joint Comprehensive Plan of Action—an agreement that Trump unilaterally abandoned during his first term, to widespread international criticism. To accept Washington's current terms, Iranian officials contend, would be to negotiate away the country's sovereign rights and strategic deterrent simultaneously. Iran has consistently maintained that its nuclear programme serves civilian energy purposes, a position that American intelligence agencies continue to dispute.
The diplomatic confrontation is unfolding against the backdrop of an economic and maritime conflict of considerable severity. The United States has imposed a naval blockade on Iranian ports that Tehran says is costing the country approximately $400 million a day in foregone revenues—a figure, if accurate, that represents an extraordinary degree of sustained economic warfare. Iran, in turn, has leveraged its geographic position to considerable effect, with the Islamic Revolutionary Guard Corps tightening its control over the Strait of Hormuz, through which approximately one-fifth of the world's oil and liquefied natural gas supplies normally transit.
Iranian President Masoud Pezeshkian has told Pakistan's Prime Minister Shehbaz Sharif that his government will not enter into meaningful negotiations "under pressure, threats, and blockade." It is a position with considerable domestic political logic in Tehran, where any appearance of capitulation under duress would carry high costs for a leadership already navigating complex internal pressures.
The mediation architecture that has developed around the crisis now encompasses a broad coalition of regional powers—Oman, Qatar, Saudi Arabia, Egypt, and Turkey—each engaged in the delicate work of maintaining communication between parties who have demonstrated limited willingness to speak directly. The Emir of Qatar, in a sign of growing regional alarm, contacted Trump personally to urge restraint and adherence to the existing ceasefire. Iranian officials, meanwhile, have repeatedly raised the spectre of past episodes in which military action by the United States or Israel coincided with active diplomatic engagement, severely eroding whatever trust existed.
Analysts who have tracked the relationship across several administrations are increasingly sombre in their assessments. With formal negotiations suspended, the blockade intensifying, and both governments locked into publicly stated maximalist positions, the conditions for miscalculation are, by most reckonings, alarmingly present.
The strategic logic animating Washington appears to rest on the assumption that sustained economic pressure will, in time, compel Tehran to accept terms it has so far rejected, and that too, within a political window that doesn't hurt the November midterm elections. Iran, for its part, has demonstrated across decades of sanctions, military strikes and diplomatic isolation a capacity for institutional endurance that has consistently outlasted the patience of its adversaries. Its government may be under strain. It has not, however, shown any sign of the fundamental reorientation that Washington is seeking.
Diplomacy, however, still stands a chance. Araghchi, who had left Islamabad for Oman as part of a multi-leg regional tour, also expected to include Moscow, was confirmed by Iranian state media to be returning to the Pakistani capital. He is to be joined by other members of the negotiating delegation who had returned to Tehran specifically to seek guidance from senior leadership. Before leaving Islamabad, Araghchi said he had provided Pakistani mediators with what he called a "workable framework to permanently end the war"—while pointedly expressing doubt about whether Washington was negotiating in good faith.