Blackstone, a career member of the Senior Foreign Service, class of minister-counselor, has been a career member of the Foreign Service since 1991.[3] He was the minister-counselor for management of the United States Embassy in Cairo, Egypt, and management counselor of the United States embassies in Bangkok, Thailand and New Delhi, India. From 2009 to 2010, he was also the team leader of the United States Provincial Reconstruction Team in Wasit, Iraq. He served as the executive director of the Bureau of East Asian and Pacific Affairs at the State Department from 2017 to 2020.[2][3]
Ambassador to East Timor
On May 28, 2020, President Trump nominated Blackstone to be the next ambassador to Timor-Leste. On June 2, 2020, his nomination was sent to the Senate.[4] He appeared before the Senate Foreign Relations Committee on December 2, 2020. Blackstone was confirmed by voice vote by the full Senate on December 22, 2020.[5] He was sworn in on January 6, 2021.[6] He presented credentials to Timor-Leste President Francisco Guterres on March 19, 2021.[7]
Blackstone left the ambassadorship in August 2021.[8]