Members of the National War Powers Commission presented the commission's unanimous report on the respective war powers of the president and Congress. They recommended that Congress draft new legislation to replace the vague and outdated War Powers Act of 1973. They also urged that new legislation more precisely define the procedures by which the president consulted with Congress prior to formal authorization of sustained military operations. The commission is a private bipartisan group established by the Miller Center of Public Affairs to clarify war powers and prevent debate over ambiguous interpretations of the powers of the commander-in-chief and congressional power to declare war in the Constitution.