The Constitution itself begins with the phrase “We the People,” and the reason constitutional law governs all statutory laws is that the sovereign people ratified that Constitution. A republic might be ‘unitary’—ruled by a single, centralized government. The American Founders saw that this would lead to an overbearing national government, one that would eventually undermine republican self-government itself. They gave the federal government enumerated powers, leaving the remaining governmental powers “to the States, or the People.” The Civil War was fought over this issue, as well as slavery, the question of whether the American Union could defend itself against its internal enemies. The classical political philosophers classified the forms of political rule, giving names to the several ‘regimes’ they saw around them. They emphasized the importance of regimes because regimes, they knew, designate who rules us, the institutions by which the rulers rule, the purposes of that rule, and finally the way of life of citizens or subjects. In choosing a republican regime on a democratic foundation, governing a large territory for commercial purposes with a carefully calibrated set of governmental powers, all intended to secure the natural rights of citizens according to the laws of Nature and of Nature’s God, the Founders set the course of human events on a new and better direction. Each generation of Americans has needed to understand the American way of life and to defend it.