Stopping Iran from developing nuclear weapons is a top priority for the U.S. administration. That’s according to national security adviser Jake Sullivan, following the election of Iran’s new President Ebrahim Raisi. Diplomacy is the best way to achieve this, he added, and Raisi’s win is unlikely to derail ongoing negotiations in Vienna about restoring a nuclear deal. The ultimate decision on that, however, rests with Supreme Leader Ayatollah Ali Khamenei, not Raisi, he said. Sullivan also said the White House is waiting for North Korea to indicate whether it’s prepared to return to the negotiating table on its nuclear program.

