Asked how often he communicated with US President Donald Trump throughout the negotiations and if there were multiple rounds of negotiations, Vance said, "Obviously, we were talking to the President consistently. I don't know how many times we talked to him, a half dozen times, a dozen times over the past 21 hours. We obviously also talked to Admiral (Brad) Cooper, to (US War Secretary) Pete (Hegseth), to (US Secretary of State) Marco (Rubio), to the entire national security team. We talked to (Treasury Secretary) Scott Bessent a number of times. So look, we were constantly in communication with the team because we were negotiating in good faith. And we leave here, and we leave here with a very simple proposal, a method of understanding that is our final and best offer. We'll see if the Iranians accept it."