The Constitution of the United States of America is the supreme law of the United States. Originally comprising seven articles, it details the national frame of government. Empowered with the sovereign authority of the people by the framers and the consent of the legislatures of the states, it is the source of all government powers, and also provides important limitations on the government that protect the fundamental rights of United States citizens. The need for the Constitution grew out of problems with the Articles of Confederation, which established a “firm league of friendship” between the states and vested most power in a Congress of the Confederation.
We the People of the United States, in Order to form a more perfect Union, establish Justice, ensure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.