The document outlines six basic principles of the US Constitution that protect freedom and liberty:
1) Popular sovereignty - the people are the source of governmental authority through voting in a republican form of government.
2) Rule of law - the government is limited to only the powers granted by the people and all individuals, including officials, are subject to the law.
3) Separation of powers and checks and balances - power is divided among the three branches of government and each branch has checks on the others to prevent abuse of power.
4) Federalism - the national and state governments share and divide powers, with the federal government having supremacy when laws conflict.