Bagley has served in four presidential administrations as a diplomat. During the
Carter administration, she served as Congressional liaison officer for The Panama Canal Treaties in the Department of State. Additionally, she was special assistant to
Sol Linowitz, a top diplomat for President
Jimmy Carter, for the
Camp David Accords from 1979 to 1980. In the twilight of Carter's presidency, she was the Congressional liaison to the Conference on Security and Cooperation in Europe from 1980 to 1981. In the
Clinton administration, she was appointed to serve as
U.S. Ambassador to Portugal from 1994 to 1997. She later served as senior advisor under Secretary of State
Madeleine Albright, where she established and headed the Office of Media Programming Acquisition for the newly independent
Balkan states. She also served as a
United States Senate liaison for NATO Enlargement. As an international law attorney, she was adjunct professor of law at
Georgetown University in Washington from 1991 to 1993. In the
Obama administration, she twice served as the special advisor for Secretary's Initiatives, and was appointed by President Obama as the U.S. Delegate to the United Nations General Assembly in September 2012. Prior to assuming those posts, she was the Special Representative for
Global Partnerships in the Office of the
Secretary of State. President
Joe Biden nominated Bagley to be the next United States Ambassador to Brazil on January 19, 2022. Hearings on her nomination were held before the
Senate Foreign Relations Committee on May 18, 2022. The committee was deadlocked on her nomination on June 23, 2022. Her nomination was considered controversial as comments came to light that were linked to anti-Semitic tropes, including acknowledging Israel's capital of Jerusalem as "stupid." Her nomination was discharged from the committee by a unanimous consent on December 6, 2022. The
United States Senate confirmed her nomination by
voice vote on December 14, 2022. On January 9, 2023, she was sworn into office by Vice President
Kamala Harris. She presented her credentials to President
Luiz Inácio Lula da Silva on February 3, 2023. ==Associations and memberships==