Any U.S. citizen, at least thirty-five years of age, who has been a U.S. resident for at least fourteen years, meets the constitutional requirements for the presidency. What is the most common previous occupational field of presidents in the United States? Don't know?, How has the United States defined citizenship over time? To explore these critical questions, GCIR has developed a timeline, “Who Gets to Be an American,” which provides in-depth information on the evolution of American citizenship and how the United States has determined who belongs in this country and who does not., Immigration laws in the U.S., both past and present, are subject to certain political, social, and economic changes which have shaped modern precedent. Immigration, citizenship, and naturalization policies have changed dramatically throughout the history of the United States., Learn what it means to be a U.S. citizen throughout American history in this episode of Why It Matters, the history video series where the past is used to explain the present., United States, the Court declared, “Under our Constitution, a naturalized citizen stands on an equal footing with the native citizen in all respects save that of eligibility to the Presidency.”, .