Philip Zelikow, who was a top aide to former Secretary of State Condoleezza Rice, repeated an accusation during the hearing that Bush officials ordered his memo arguing against waterboarding to be destroyed.

CNN: 'Enhanced interrogations' don't work, ex-FBI agent tells panel

The lobbying firm boasts the services of two onetime foreign policy hands of President Bush: Ambassador Robert Blackwill, the former deputy national security adviser who was Bush's envoy to Iraq and helped form Allawi's interim government in 2004, and Philip Zelikow, former counselor to Secretary of State Condoleezza Rice.

CNN: Powerhouse GOP firm working to undermine Iraqi PM