Many critics of the Iraq war are reluctant to suggest that President Bush went into it in anything but good faith. But James Madison, widely known as the father of the Constitution, might have been more skeptical. “In war, the honors and emoluments of office are to be multiplied; and it is the executive patronage under which they are to be enjoyed,” he warned. “It is in war, finally, that laurels are to be gathered; and it is the executive brow they are to encircle.”

When they drafted the Constitution, Madison and his colleagues wrote their skepticism into the text. In Britain, the king had the authority to declare war, and raise and support armies, among other war powers. The framers expressly rejected this model and gave these powers not to the president, but to Congress.

The Constitution does make the president “commander in chief,” a title President Bush often invokes. But it does not have the sweeping meaning he suggests. The framers took it from the British military, which used it to denote the highest-ranking official in a theater of battle. Alexander Hamilton emphasized in Federalist No. 69 that the president would be “nothing more” than “first general and admiral,” responsible for “command and direction” of military forces.

The founders would have been astonished by President Bush’s assertion that Congress should simply write him blank checks for war. They gave Congress the power of the purse so it would have leverage to force the president to execute their laws properly. Madison described Congress’s control over spending as “the most complete and effectual weapon with which any constitution can arm the immediate representatives of the people, for obtaining a redress of every grievance, and for carrying into effect every just and salutary measure.”

The framers expected Congress to keep the president on an especially short leash on military matters. The Constitution authorizes Congress to appropriate money for an army, but prohibits appropriations for longer than two years. Hamilton explained that the limitation prevented Congress from vesting “in the executive department permanent funds for the support of an army, if they were even incautious enough to be willing to repose in it so improper a confidence.”