David M. Walker is a CPA with over 40 years of experience who serves on a number of boards and advisory committees. He most recently served as CEO of the Comeback America Initiative (CAI), and the Peter G. Peterson Foundation. Previously, Walker served as the seventh comptroller general of the United States and head of the U.S. Government Accountability Office (GAO) for almost ten years (1998–2008). This was one of Walker's three presidential appointments each by different presidents of both major political parties during his 15 years of total federal service.
Walker also has over 20 years of private sector experience, including approximately ten years as a partner and global managing director of human capital services for Arthur Andersen LLP. Walker is also a former chairman of the United Nations Independent Audit Advisory Committee, a former assistant secretary of Labor for Employee Benefit Security and a former trustee of Social Security and Medicare. He has authored three books, with the latest one entitled Comeback America: Turning the Country Around and Restoring Fiscal Responsibility (2010) achieving National Bestseller status. He is a frequent writer and commentator, and is a subject of the critically acclaimed documentary I.O.U.S.A.