Iran’s hardline approach to recent negotiations in Vienna raised further concerns about prospects for diplomatic efforts to restore the 2015 nuclear deal, known formally as the Joint Comprehensive Plan of Action (JCPOA). Talks resumed Nov. 29 in Vienna after a five-month hiatus, during which Iranian President Ebrahim Raisi took office and assembled his team. While the Raisi administration’s rhetoric ahead of the negotiations suggested a harder line than his predecessor, Iran’s demands for "sweeping changes" to the text of the agreement and its disinterest in honoring progress made during the...