Thomas A. Shannon, Jr.

United States  |  Co-Chair, Inter-American Dialogue

Former Under Secretary of State for Political Affairs

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Tom Shannon spent over 30 years in the foreign service, most recently as under secretary of state for political affairs in the US Department of State from 2016-2018. He previously served as counselor and senior advisor to the secretary following a four-year term as US ambassador to Brazil. Shannon served as assistant secretary of state for Western Hemisphere affairs from 2005-2009 and as special assistant to the president and senior director for Western Hemisphere affairs at the National Security Council from 2003 to 2005, among other senior roles across the region. He is now a senior advisor for Arnold & Porter.


Shannon joined the Dialogue as a Member in 2018. He currently serves as Co-Chair of the Dialogue’s Board of Directors.

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Tom Shannon

Thomas Shannon y los Desafíos Democráticos en América Latina

Thomas A. Shannon, co-chair del Inter-American Dialogue habló con El País de España sobre los desafíos de la democracia en América Latina, la política exterior de la administración Biden y de países puntuales como Colombia, Venezuela y México. 

Tom Shannon

Member in the News: Tom Shannon

On July 28, Ambassador Tom Shannon, former under secretary of state for political affairs, participated in a virtual briefing organized by the Senate Foreign Relations Committee (SFRC) to discuss a new report by SFRC Democratic Staff. The report is titled Diplomacy in Crisis: The Trump Administration’s Decimation of the State Department.

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