What Natural Born Citizen Means Under the Constitution

Under the Constitution, a natural born citizen is someone who holds U.S. citizenship from the moment of birth, with no naturalization step required. That covers two groups: people born on American soil, and people born abroad to a U.S. citizen parent who meets certain residency requirements. The Constitution uses the phrase but never defines it, and the Supreme Court has never issued a controlling ruling on its full scope, so the working meaning comes from the 14th Amendment, federal statutes, and a handful of lower court decisions.

Where the Phrase Appears and Why It Matters

Article II, Section 1, Clause 5 sets three qualifications for the presidency: natural born citizenship, an age of at least 35, and 14 years of U.S. residency.1Legal Information Institute (LII) / Cornell Law School. Qualifications for the Presidency The 12th Amendment, ratified in 1804, extends the same eligibility rule to the vice presidency in a single sentence: no one constitutionally ineligible for the presidency can serve as Vice President.2Legal Information Institute. 12th Amendment

Those are the only offices for which the status matters. Naturalized citizens have the same rights as anyone else across the rest of American life, including service in Congress, the Cabinet, and the federal courts. The presidency and vice presidency are the exceptions.

The Constitution itself gives no definition. No federal court has laid down a complete, binding one either. The Supreme Court has ruled on birthright citizenship in other contexts but has never directly answered what “natural born citizen” means for presidential eligibility. The definition in practical use today is stitched together from English common law tradition, the 14th Amendment, statutes in Title 8 of the U.S. Code, and state and lower federal court rulings.

Born on U.S. Soil

The clearest path is birth within U.S. territory. The 14th Amendment, ratified in 1868, declares that all persons born in the United States and subject to its jurisdiction are citizens.3Library of Congress. U.S. Constitution – Fourteenth Amendment This is the principle of jus soli, or right of the soil. If you are born within the 50 states or the District of Columbia, you are a citizen at birth, and your parents’ nationality is irrelevant.

The Supreme Court confirmed this reading in United States v. Wong Kim Ark (1898), holding that a child born in the United States to parents who were permanent residents was a citizen at birth under the 14th Amendment.4Legal Information Institute. United States v. Wong Kim Ark The decision anchored the 14th Amendment in the English common law rule that birth within the sovereign’s territory creates citizenship. No application, no paperwork, no oath.

One narrow group is excluded. Children born in the United States to accredited foreign diplomats are not considered “subject to the jurisdiction” of the United States and do not receive citizenship at birth under the 14th Amendment.5U.S. Citizenship and Immigration Services. Green Card for a Person Born in the United States to a Foreign Diplomat They may qualify for permanent resident status, but they are not natural born citizens.

Born Abroad to an American Parent

You can also be a citizen from birth without ever setting foot on U.S. soil. Under the principle of jus sanguinis, or right of blood, federal law grants citizenship at birth to children born abroad if at least one parent is a U.S. citizen who has met certain physical presence requirements in the United States. Because these children are citizens the moment they are born, and never go through naturalization, the prevailing legal view is that they are natural born citizens eligible for the presidency.

The specific rules turn on the parents’ citizenship and marital status. For married parents, 8 U.S.C. § 1401 covers the main scenarios:6Office of the Law Revision Counsel. 8 USC 1401 – Nationals and Citizens of United States at Birth

  • If both parents are U.S. citizens, the child is a citizen at birth as long as at least one parent lived in the United States or its possessions at some point before the birth.
  • If one parent is a U.S. citizen and the other is a non-citizen national, the citizen parent must have been physically present in the United States for at least one continuous year before the birth.
  • If one parent is a U.S. citizen and the other is a foreign national, the citizen parent must have been physically present in the United States for at least five years total, with at least two of those years after age 14. Time abroad on active military duty or as a U.S. government employee counts.

Separate rules in 8 U.S.C. § 1409 apply when the parents are not married, with additional evidentiary steps required when the U.S. citizen parent is the father.7Office of the Law Revision Counsel. 8 USC 1409 – Children Born Out of Wedlock

People Born in U.S. Territories

People born in most U.S. territories are also citizens at birth, but through specific acts of Congress rather than the 14th Amendment. The effective dates vary by territory:

Because these people are citizens from the moment of birth, they are widely regarded as natural born citizens. The status rests on statute, so Congress could in theory change the rule for future births, though it has never done so.

American Samoa is the exception. People born there are classified as U.S. nationals, not citizens, at birth.11Office of the Law Revision Counsel. 8 USC 1408 – Nationals but Not Citizens of the United States at Birth Nationals owe allegiance to the United States and can live and work anywhere in the country, but they cannot vote in federal elections. A federal district court in Utah ruled in Fitisemanu v. United States (2019) that the 14th Amendment’s citizenship clause reaches American Samoa, but the Tenth Circuit reversed in 2021, holding that under the Insular Cases the question is for Congress to decide. Under current law, people born in American Samoa are not natural born citizens for presidential eligibility purposes.

What the Courts Have Said

Two lower court decisions have shaped the working definition when eligibility has been challenged in litigation.

In Ankeny v. Governor of the State of Indiana (2009), the Indiana Court of Appeals held that people born within U.S. borders are natural born citizens regardless of their parents’ citizenship. The court relied on Wong Kim Ark and the common law tradition, and noted it was not saying birth on U.S. soil is the only qualifying path.12FindLaw. Ankeny v. Governor of State of Indiana (2009)

In Elliott v. Cruz (2016), the Commonwealth Court of Pennsylvania addressed whether Senator Ted Cruz, born in Canada to an American mother, qualified. The court held that “a ‘natural born citizen’ includes any person who is a United States citizen from birth” and does not need to naturalize. The Pennsylvania Supreme Court affirmed.13FindLaw. Elliott v. Cruz (2016)

The pattern in these decisions matches the broad scholarly consensus: if you were a U.S. citizen the moment you were born, you are a natural born citizen. The narrower view that only birth on U.S. soil counts has been rejected by every court that has addressed the question, though the Supreme Court has never resolved it definitively.

Dual Citizenship Does Not Disqualify

Holding citizenship in another country at birth does not strip the natural born status. A child born in the United States to foreign parents often holds dual citizenship, one through the 14th Amendment and one through the parents’ country. A child born abroad to a U.S. citizen parent may hold the citizenship of the country of birth. Neither situation changes the analysis. Cruz, for instance, held both U.S. and Canadian citizenship at birth, and the courts still found him eligible.

How the Status Can Be Lost

Natural born citizenship is not technically permanent. Federal law allows the loss of nationality, whether acquired by birth or naturalization, but only through a voluntary act performed with the specific intent to give up U.S. citizenship.14Office of the Law Revision Counsel. 8 USC 1481 – Loss of Nationality by Native-Born or Naturalized Citizen The acts that can trigger loss include naturalizing in another country after turning 18, taking a formal oath of allegiance to a foreign government, serving in the armed forces of a country at war with the United States or as an officer in any foreign military, accepting a foreign government job that requires foreign citizenship or an oath of allegiance, formally renouncing citizenship before a U.S. diplomatic officer, or being convicted of treason.

Both elements must be present: the act itself and the intent to relinquish. Living abroad, voting in a foreign election, or carrying a second passport does not cause loss of citizenship on its own. The government carries the burden of proving intent. If citizenship is lost, eligibility for the presidency and vice presidency goes with it.