A professional headshot of a middle-aged man with gray hair, wearing a black suit, light blue shirt, and a dark tie with a crest pattern, against a dark background.

John Sullivan

Senior Counsel, Mayer Brown; Distinguished Scholar, Georgetown’s School of Foreign Service

John Sullivan was Deputy Secretary at the U.S. Department of State from 2017 to 2019 and Ambassador to the Russian Federation from 2020 to 2022. He serves as a Contributor to CBS News, and also served previously in senior positions at the Departments of Justice, Defense, and Commerce, including as Deputy Secretary of Commerce. He is the author of Midnight in Moscow: A Memoir from the Front Lines of Russia’s War against the West.