Who was the chief economic policy adviser during the 2008 presidential campaign of the current US Senator from Arizona?
Douglas Holtz-Eakin: Douglas James "Doug" Holtz-Eakin (born February 3, 1958) is an American economist. Douglas Holtz-Eakin:  He was formerly an economics professor, Director of the Congressional Budget Office, and chief economic policy adviser to United States Senator John McCain's 2008 presidential campaign. John McCain: John Sidney McCain III (born August 29, 1936) is an American politician who currently serves as the senior United States Senator from Arizona, in that office since 1987.
Douglas James "Doug" Holtz-Eakin