In 2001, Grenell was appointed by President George W. Bush as Director of Communications and Public Diplomacy for the United States Permanent Representative to the United Nations in New York (formally, his title was Minister Counselor).[10] Serving in that role until 2008, Grenell advised four different U.S. Ambassadors. During his tenure, Grenell promulgated U.S. official position and strategy on such issues as the War on Terror, global peacekeeping operations, nuclear proliferation, and the UN Oil for Food corruption scandal.[2]