The Constitutional Convention affected nothing less than a revolution in the nature of the American government. Led by James Madison, a small cohort of delegates devised a plan that would radically alter the balance of power between state and national governments, and then sprung that idea on a largely unsuspecting convention. The success of this bold and brilliant strategy was, however, far from assured, and the ultimate outcome of the delegates' labors - the creation of a frame of government that would enable the fragile American union to flourish - turned out to be very different from that which Madison had originally envisioned. In fact, there was very little agreement among the framers about the nature of the government they had just created.