Iranian media: Tehran received a letter from US Vice President J. Di Vance and did not respond to him Iran insists that the US fulfill its seven conditions and says that "any position that conflicts with this framework is unacceptable." ◀ The Wall Street Journal cited American officials and sources of information who said, on Wednesday, that Vance sent a letter to Mosan Razai, the secretary of Iran's Supreme National Security Council and the former commander of the Iranian Revolutionary Guards.