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The American governmental system is federal in form. It is the division of a power among a central government and several central governments.

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This may be defined as the power of a court to determine the constitutionality of a governmental action. It also has the power to declare unconstitutional or declare illegal. The power is also held by the federal courts and by most State courts.

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The three branches of the National Government are the legislative, judicial, and executive. Checks and Balances means that each of the branches are subject to a number of constitutional checks, or restraints, by the other branches. Congress has the power to make laws, but the President may veto any act of Congress.

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The government's power separated into 3 distinct independent branches of the government. They are the Legislative, Judicial, Executive branches.

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The principle of limited government holds that no government is all-powerful. This government may do only those things that the people have given it the power to do. Another concept is that the government must obey the law. It is also described as rule of law. This means that the government and its officers in all of all that they do, are always subject to-never above-the law.

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In the U.S., the political power rests in the people, a concept known as Popular Sovereignty. The people are the only source for any and all governmental power. The principle is woven all throughout the Constitution. The people of the U.S. have given the power to the government through the constitution.