Some Trump officials privately acknowledged to CNN that the president’s public commentary has been detrimental to talks, noting the sensitivity of the negotiations and the Iranians’ deep mistrust of the US. Compounding matters: American officials suspect there is a divide between Iran’s negotiating team, led by Parliament Speaker Mohammad Bagher Ghalibaf and Foreign Minister Abbas Araghchi, and Iran’s Islamic Revolutionary Guard Corps, leading to questions about who can ultimately sign off on a deal.
“The Iranians didn’t appreciate POTUS negotiating through social media and making it appear as if they had signed off on issues they hadn’t yet agreed to, and ones that aren’t popular with their people back home,” one person familiar with the talks told CNN, adding that the Iranians are particularly concerned about appearing to look weak.
America's superdiplomat, JD Vance, has postponed his trip to Islamabad.