The Bush administration repeatedly ignored corruption at the highest levels within the Iraqi government and kept secret potentially embarrassing information so as not to undermine its relationship with Baghdad, according to two former State Department employees.

Arthur Brennan, who briefly served in Baghdad as head of the department's Office of Accountability and Transparency last year, and James Mattil, who worked as the chief of staff, told Senate Democrats on Monday that their office was understaffed and its warnings and recommendations ignored.