The Constitutional principle of due process, which holds that government must interact with citizens according to duly-enacted laws, balances the rights of suspects with public safety. This lesson explores the protections provided by the Fourth Amendment and how the Supreme Court has interpreted it over time.

The Fourteenth Amendment was originally written to ensure that freed slaves would be treated as citizens, but, in the twentieth century, the Supreme Court used the amendment's Equal Protection and Due Process Clauses to expand the protections provided in the Bill of Rights to the states. This concept of extending, called incorporation, means that the federal government uses the Fourteenth Amendment and the Bill of Rights to address limitations on liberty by states against their citizens. This lesson explores the significance of this amendment and incorporation and its effects on our constitutional structure.

The Founders were extremely concerned with protecting private property as a cornerstone of a free society. Property is not only physical possessions but also ideas, works, and even what someone has been promised in wages. This lesson explores the idea of property, its origins and the reasons it is protected.

Congress' power to regulate interstate commerce, granted in the Commerce Clause, is often invoked as justification for laws regulating a wide variety of economic activities. How much power does the Commerce Clause allow the federal government to have over the states? This lesson examines this question by looking at the principle behind this clause, the Founders intentions, and how the Supreme Court has interpreted the clause throughout American History.