A diplomat, lawyer and fierce conservative advocate, Ambassador Bolton has had a distinguished career in the public service. From August 2005 to December 2006, he served as the United States Permanent Representative to the United Nations.  The Economist called Bolton “the most controversial Ambassador ever sent by America to the United Nations.”

From June 2001 to May 2005, Ambassador Bolton served as Under Secretary of State for Arms Control and International Security. In this role, a key area of his responsibility was the prevention of proliferation of Weapons of Mass Destruction.