John J. Sullivan
American lawyer and diplomat · United States · On the map · Politicians · Born 1959 · age 66
John Joseph Sullivan is an American attorney and government official who served as the United States ambassador to Russia from 2020 to 2022, and who previously served as the 19th U.S. deputy secretary of state from 2017 to 2019.
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A member of the Republican Party, Sullivan served as Acting United States Secretary of State from April 1, 2018, to April 26, 2018, following President Donald Trump's dismissal of Secretary of State Rex Tillerson on March 13, 2018, until Tillerson's official successor, Mike Pompeo, was sworn in. Tillerson did not officially leave office until March 31, 2018. Sullivan, however, was delegated all responsibilities of the Secretary of State beginning March 13.