America, like some other places, has a Constitution. Ours was signed on September 17, 1787 in Philadelphia, and all of them insure our rights. The Constitution has many things, but the most important thing it has is rules. Rules about the government; what it can and can't do. Rules about protecting the citizens power. It's there to make sure everyone gets power and nobody gets too much. There are six principals to make this happen. First we have Popular Sovereignty, which makes sure that the people get the power and lend it to others to keep us safe. The next is Limited Government, which pretty much does what it says. The third is Separation of Powers, which is based on the three branches of government and how they can't take each others power. After that we have federalism, insuring the state governments get power, not just the federal government. Our fifth principal is Checks and Balances, where it's made sure that no one branch gets out of hand and gets too much power. Last but not least, we have Representative Government, where everyday people vote for Representatives, Senators, and even our President. If you'd like to hear more, see the rest of the website.