The basis for the rights of united states citizens is the:

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The basis for the rights of the United States citizens is the:

       United States Constitution

The Constitution has a section in it called the Bill of Rights which lays out each of the individual rights of the American citizen in addition to each one of the Amendments which are reforms to the original Bill of Rights that more specifically and more clearly lay out the rights of the American citizen.

besides the fact that abraham lincoln abolished slavery, and greatly benefit black people, he had a heavy impact of the definition of what democracy was, and should be.