William R. Richardson: “His main objective is to stay in power, more so than detente with the United States.”

You have to have verification standards. A lot of inspectors, have them do an inventory of all their nuclear and missile sites.

I think Hillary has to show that she can get things done and Bernie Sanders, for all his good policies and progressive face, does not have a record of passing legislation.

The impasse is that what we're saying the North Koreans, 'Look, we're ready to talk to you but you've got to take some concrete steps towards denuclearization. Stop sending those missiles out. Stop detonating nuclear weapons. Behave…

I believe that the North Koreans--we have a different perspective of what denuclearization is.