David M. Walker was the seventh Comptroller General of the United States and head of the Government Accountability Office (1998-2008). He left GAO to be President and CEO of the Peter G. Peterson Foundation (2008-2010) to champion federal government fiscal responsibility. He received his B.S. in accounting from Jacksonville University and is a CPA. He worked with several leading accounting firms, including partner and global managing director of Arthur Andersen, LLP (1989-1998). He served as Acting Executive Director, Pension Benefit Guaranty Corporation (1984-1985), Assistant Secretary for pension and welfare benefit programs at the U.S. Department of Labor (1987-1989), and Trustee of the Social Security and Medicare Trust Funds (1990-1995).