Article IV, Section 2 of the United States Constitution provides that "The Citizens of each State shall be entitled to all Privileges and Immunities of Citizens in the several States," while Amendment XIV, Section 1 mandates that "No state shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States." These clauses reflect language also included in Article IV of the Articles of Confederation and are discussed in Federalist Papers 42 and 80. This clause has been interpreted to protect the fundamental rights of individual citizens and restrain states from discriminating against citizens of other states.