PHOENIX (By Wikipedia) March 23, 2010 ― Puerto Rico is a is a self-governing unincorporated territory of the United States.

Puerto Rico has a republican form of government, subject to U.S. jurisdiction and sovereignty. Its current powers are all delegated by the United States Congress and lack full protection under the United States Constitution.

Puerto Rico's head of state is the President of the United States.

Puerto Rico according to the U.S. Supreme Court's Insular Cases is "a territory appurtenant and belonging to the United States, but not a part of the United States."

Puerto Rico is subject U.S. federal law, even though Puerto Rico is not a state of the American Union and has no voting representative in the U.S. Congress.

Because of the establishment of the Federal Relations Act of 1950, all federal laws that are "not locally inapplicable" are automatically the law of the land in Puerto Rico. In 1907, the U.S. Supreme Court, in Grafton v. United States, Justice Harlan clarified the meaning of plenary powers: "'The government of a state derives its powers from the people of the state, whereas the government of a territory owes its existence wholly to the United States'...The Court thus seems to equate plenary power to exclusive power. The U.S. government could exert over the territory power that it could not exercise over the state...This power, however, is not absolute, for it is restrained by some then-undefined fundamental rights possessed by anyone subject to the authority of the U.S. government."

Thus, people who have always lived in Puerto Rico cannot vote in federal elections, but people born in Puerto Rico and living in a state or in DC can vote.  is?”