Following a performative election on June 18, Iran will have a new president: the hard-line Ebrahim Raisi. Raisi’s rise will likely mean a different nuclear negotiating team after August in Vienna, where Iran and six world powers, including the United States, are working to revive the 2015 nuclear deal known as the Joint Comprehensive Plan of Action.

Despite the new leader’s rhetorical support for nuclear diplomacy, the Raisi presidency offers Supreme Leader Ali Khamenei the option to increase his demands and further extort the West. Washington should not let Tehran use the time between the new president’s inauguration as a mechanism to wrest more appealing terms.