Tasnim: Iran has not yet responded to Vance's letter / Iran's clear emphasis on the implementation of the 7 conditions Follow-up shows that J. Dee Vance, Trump's deputy, wrote a letter to the secretary of Iran's Supreme National Security Council; Iran received the letter but has not yet responded to it. Iran insists on the necessity of implementing Iran's 7 conditions by America, and any position that interferes with this defined framework of Iran is not accepted.