<P> Citizenship of the United States is a status that entails specific rights, duties and benefits . Citizenship is understood as a "right to have rights" since it serves as a foundation of fundamental rights derived from and protected by the Constitution and laws of the United States, such as the right to freedom of expression, vote, due process, live and work in the United States, and to receive federal assistance . However, not all U.S. citizens, such as those living in Puerto Rico, have the right to vote in national elections . </P> <P> There are two primary sources of citizenship: birthright citizenship, in which a person is presumed to be a citizen if he or she was born within the territorial limits of the United States, or--providing certain other requirements are met--born abroad to a U.S. citizen parent, and naturalization, a process in which an immigrant applies for citizenship and is accepted . These two pathways to citizenship are specified in the Citizenship Clause of the Constitution's 1868 Fourteenth Amendment which reads: </P> <P> All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside . </P> <P> National citizenship signifies membership in the country as a whole; state citizenship, in contrast, signifies a relation between a person and a particular state and has application generally limited to domestic matters . State citizenship may affect (1) tax decisions and (2) eligibility for some state - provided benefits such as higher education and (3) eligibility for state political posts such as U.S. Senator . </P>

What defines a citizen of the united states
find me the text answering this question