The report published by the Tower Commission was delivered to the president on 26 February 1987. The Commission had interviewed 80 witnesses to the scheme, including Reagan, and two of the arms trade middlemen: Manucher Ghorbanifar and Adnan Khashoggi. The 200-page report was the most comprehensive of any released, criticizing the actions of Oliver North, John Poindexter, Caspar Weinberger, and others. It determined that President Reagan did not have knowledge of the extent of the program, especially about the diversion of funds to the Contras, although it argued that the president ought to have had better control of the National Security Council staff. The report heavily criticized Reagan for not properly supervising his subordinates or being aware of their actions. A major result of the Tower Commission was the consensus that Reagan should have listened to his National Security Advisor more, thereby placing more power in the hands of that chair.