 As Secretary, Cline served as Governor Henry's chief health policy advisor and had supervision over the Oklahoma State Department of Health and the Oklahoma Tobacco Settlement Endowment Trust.President George W. Bush nominated Cline to serve as the Administrator of the Substance Abuse and Mental Health Services Administration, an agency of the United States Department of Health and Human Services, in November 2006, and his nomination was confirmed by the U.S. Senate in December.At the end of August 2008, Terry Cline became the HHS Department’s Health Attaché and representative at the U.S. Embassy in Baghdad, Iraq.