Secret correspondence claims suggest tensions at top of Iranian government

Former negotiating team member gives shock interview claiming supreme leader’s instructions were not followedA former member of Iran’s negotiating team in the previous round of talks with the US in Islamabad is facing the threat of prosecution and dismissal from parliament after he went on the main state broadcaster to reveal what he claimed were confidential letters from the country’s supreme leader.The interview with Mahmoud Nabavian, the deputy chair of Iran’s national security council, was eventually cut off, but only after he said he had seen secret correspondence written by Mojtaba Khamenei in which the ayatollah allegedly said Iran’s negotiating team had overstepped its mandate