"The president's been pretty clear about that" he added, explaining that it would be up to Mr. Rouhani to reach out.
"We had a productive conversation," he said during the president's NATO press conference. "There remains a great deal of work to do, but I think, most importantly, my counterpart, Kim Yong-chol, made a commitment consistent with what President Trump was able to achieve with Chairman Kim, which was: They intend to denuclearize. They're going to accomplish it. And now the task is to get it implemented."