Iran has yet to respond to Vance's letter/Iran's clear emphasis on implementing the 7 conditions The following 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 the US, and any position that interferes with this defined framework of Iran is not accepted./Tasanim.