[Rubio: Progress in US-Iran Negotiations, No Guarantee of Agreement Reached] According to a report by Jinse Finance, on May 22, U.S. Secretary of State Rubio stated on the 21st that some progress has been made in negotiations between the United States and Iran, but he cannot guarantee that an agreement will definitely be reached. He also noted that if a 'good agreement' cannot be reached, 'everyone is aware' of the other options available to the United States.