Thomas Alfred Shannon Jr. -
People - Department History
Thomas Alfred Shannon Jr. (1958–)
Career Foreign Service Officer
State of Residence: Virginia
State of Residence: Virginia
- Assistant Secretary of State for Western Hemisphere Affairs
Appointed: October 12, 2005
Entry on Duty: October 17, 2005
Termination of Appointment: November 10, 2009 - Ambassador Extraordinary and Plenipotentiary (Brazil)
Appointed: December 29, 2009
Presentation of Credentials: February 4, 2010
Termination of Mission: Left post on September 6, 2013 - Career Ambassador
Appointed: September 26, 2012 - Counselor
Appointed: December 24, 2013
Entry on Duty: December 24, 2013
Termination of Appointment: February 12, 2016 - Under Secretary of State for Political Affairs
Appointed: February 12, 2016
Entry on Duty: February 12, 2016
Termination of Appointment: June 4, 2018 - Secretary of State ad interim
Appointed: January 20, 2017
Termination of Appointment: February 1, 2017- Under Secretary of State for Political Affairs; Acting Secretary of State