Hook is an American lawyer and government official.
As of 2019, he serves as U.S.
Special Representative for Iran and Senior Policy Advisor to Secretary of State Mike Pompeo.
He previously served as the Director of Policy Planning under Secretary of State Rex Tillerson.
During the George W.
Bush administration, Hook served as Assistant Secretary of State for International Organization Affairs; Senior Advisor to the U.S.
Ambassador to the United Nations; Special Assistant to the President for Policy in the White House Chief of Staff’s office; and as Counsel, Office of Legal Policy, at the U.S.
Justice Department.
Hook practiced corporate law at Hogan & Hartson in Washington from 1999-2003.
He has also worked for Iowa Governor Terry Branstad and U.S.