In this Dec. 16, 2019, photo, U.S. Special Representative for North Korea Stephen Biegun arrives for a meeting with South Korea's Vice Foreign Minister Cho Sei-young at the foreign ministry in Seoul, South Korea. Biegun was approved as Secretary of State Mike Pompeo's new deputy, assuring a degree of continuity at the helm of U.S. diplomacy should he resign for a potential Senate bid. (Ed Jones/Pool Photo via AP)