With family and U.S. Secretary of State Rex Tillerson looking on, U.S. Chief Justice John G. Roberts Jr. swears in John Sullivan as the new Deputy Secretary of State at a ceremony at the U.S. Department of State in Washington, D.C., on June 9, 2017. [State Department photo/ Public Domain]

With his family, U.S. Chief Justice John G. Roberts Jr., and U.S. Secretary of State Rex Tillerson looking on, John Sullivan signs his appointment papers to become the new Deputy Secretary of State at a ceremony at the U.S. Department of State in Washington, D.C., on June 9, 2017. [State Department photo/ Public Domain]

With his wife, Grace Rodriguez, U.S. Chief Justice John G. Roberts Jr., and U.S. Secretary of State Rex Tillerson looking on, newly sworn-in Deputy Secretary of State John Sullivan delivers remarks at his swearing-in ceremony at the U.S. Department of State in Washington, D.C., on June 9, 2017. [State Department photo/ Public Domain]