The grand marshall of the 2005 Pepsi 400 was White House Chief of staff during what years?
2005 Pepsi 400:  Former United States Secretary of Defense Donald Rumsfeld was the grand marshal. Donald Rumsfeld:  Additionally, Rumsfeld was a three-term U.S. Congressman from Illinois (1963–1969), Director of the Office of Economic Opportunity (1969–1970), Counsellor to the President (1969–1973), the United States Permanent Representative to NATO (1973–1974), and White House Chief of Staff (1974–1975).
1974–1975