Why the US Grants Citizenship Just for Being Born

Wong Kim Ark was born in San Francisco in 1873, the son of Chinese merchants who had settled in California. The laws of that era meant his parents could never become American citizens — the Chinese Exclusion Act saw to that. So when Wong sailed back from a visit to China in 1895 carrying a re-entry certificate, a customs inspector told him something remarkable: he was not a citizen, and he was not getting back in. Wong sued. He won. And in winning, he locked into place one of the strangest, most generous rules in the world. If you are born on American soil, you are American — not because of who your parents are, not because of paperwork, but simply because you were born here.

People keep asking why the United States still does this when most of the planet does not. The answer is a mix of English common law, a Civil War reckoning, one very stubborn cook, and a Constitution that is deliberately hard to edit.

• Birthright citizenship in the US comes from the 14th Amendment, ratified in 1868 — not from a law or a policy that can be switched off.
• The system is called jus soli (right of the soil). Most countries use jus sanguinis (right of blood) instead.
• The Supreme Court settled the question in 1898 in United States v. Wong Kim Ark, ruling that children of foreign parents born on US soil are citizens.
• A president cannot end it by executive order. Changing it requires a constitutional amendment, which is a very heavy lift.

Two Ways the World Decides Who Belongs

Every country on earth has to answer one question: when a baby is born, whose citizen is that baby? There are only two real answers.

Jus soli — Latin for ‘right of the soil’ — says the land decides. Born here, you belong here. The United States, Canada, Mexico, Brazil and Argentina are the best-known examples, and almost all of them sit in the Americas.

Jus sanguinis — ‘right of blood’ — says the parents decide. A German couple working in Tokyo has a baby in Tokyo, and that baby is German, full stop. This is how the overwhelming majority of countries operate, and it is why an American couple’s child born in Paris is American and not French.

A Civil War Amendment With a Very Specific Job

To understand why America picked soil over blood, you have to go back to 1857. In Dred Scott v. Sandford, the Supreme Court ruled that people of African descent — enslaved or free — could never be citizens of the United States. It was one of the worst decisions in the Court’s history, and it helped push the country into war.

After the fighting stopped, Congress and the states set out to bury it. The Civil Rights Act of 1866 declared that anyone born in the United States was a citizen. Lawmakers worried that a future Congress could repeal a mere statute, so they went bigger. They wrote it into the Constitution.

The 14th Amendment, ratified in 1868, opens with a sentence that has been argued over for more than 150 years:

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.

That word persons was chosen on purpose. Not citizens. Not white persons. Not landowners. Persons. The whole point was to make race and parentage irrelevant to the question of who belongs.

The Three Words That Keep Lawyers Employed

Almost every legal fight over birthright citizenship comes down to a single phrase: subject to the jurisdiction thereof. If that clause means something narrow, the rule is narrow. If it means something broad, the rule is broad.

The Supreme Court has weighed in twice, and both times it leaned toward the broad reading.

In 1884, Elk v. Wilkins held that a Native American man born into a tribe was not a citizen by birth, because tribal members owed allegiance to their nations rather than fully to the United States. That ruling is why Congress had to pass the Indian Citizenship Act in 1924.

Then came Wong Kim Ark in 1898. The Court ruled 6–2 that a child born in San Francisco to Chinese parents who were permanently residing in the US — and who were themselves barred from naturalizing — was a citizen anyway. The justices reasoned that the jurisdiction clause excluded only people who owed no allegiance to American law at all: the children of foreign diplomats, and the children of an occupying enemy army. Everyone else born on the soil was in.

That decision is why the child of undocumented immigrants born in Ohio today holds a US passport from the moment of birth. It is also why every serious legal challenge to birthright citizenship eventually runs into a 127-year-old wall.

Why No President Can Simply Flip a Switch

Every few years, a politician promises to end birthright citizenship. It is a popular applause line, and it runs straight into arithmetic.

There are two routes to changing it. The first is a constitutional amendment, which needs a two-thirds vote in both the House and the Senate plus ratification by three-fourths of the states — 38 of them. That has happened 27 times in American history, most recently in 1992, and never for something this contested.

The second route, which gets tried a lot, is a clever reinterpretation: a president signs an executive order declaring that the jurisdiction clause does not cover the children of undocumented parents. In January 2025, exactly that happened. Federal judges blocked it within days, calling it plainly inconsistent with the 14th Amendment, and the case climbed toward the Supreme Court. Whatever the final outcome, the underlying logic has not changed: no executive order and no act of Congress can override a constitutional amendment. Only another amendment can.

What Birthright Citizenship Actually Gets You

It is worth being precise about what the rule delivers, because the debate often drifts away from the practical details.

Rights that start at the delivery room

A baby born on US soil is a citizen immediately. There is no application, no fee, no interview, no waiting period. The birth certificate plus the constitutional text is the whole case. That child can get a US passport as an infant, will never face deportation, can vote at 18, and is eligible for the presidency — a birthright citizen counts as a ‘natural born Citizen’ under the Constitution.

What it does not do

It does not make the parents citizens. It does not give siblings born elsewhere any automatic status. It does not guarantee the family can stay in the country, and it does not create a fast track to a green card for mom and dad — they generally have to wait until the child turns 21 before sponsoring them. The idea that a birth certificate is a magic key for the whole household is one of the most persistent myths in this debate.

The Honest Arguments on Both Sides

Pretending this is a settled, uncontroversial topic would be dishonest. It is genuinely contested, and both camps have real points.

Those who defend the rule argue that it is the reason America has never had a permanent underclass of stateless people. It forces integration instead of encouraging a shadow society. It also comes with a moral inheritance: the 14th Amendment was written specifically to repudiate a court that had declared an entire race incapable of citizenship, and reading the jurisdiction clause narrowly revives that same instinct in softer language. And practically, ending it would create a generation of children raised in America with no legal home anywhere.

Those who want to narrow it argue that the framers of the 14th Amendment were thinking about freed slaves and their descendants, not about visitors, temporary workers, or people who cross the border illegally. They point to birth tourism — agencies that sell ‘maternity vacation’ packages to wealthy foreigners so their babies get US passports — and to countries like the UK, Ireland and India, which once had broad birthright citizenship and decided it no longer served them. If it is not sacred everywhere else, they ask, why here?

The counterargument is simple and hard to escape: the text says ‘all persons,’ and the Court has interpreted it that way for well over a century. Any change that ignores that text has to go through the amendment process, not around it.

Where This Leaves Everyone Born Here

The short version is that the United States gives citizenship by birth because an 1868 amendment said so in deliberately broad language, because the Supreme Court confirmed the broad reading in 1898 and has never reversed it, and because the only legitimate way to change it is a process so demanding that it has succeeded just 27 times in more than two centuries.

Wong Kim Ark went back to work as a cook in San Francisco after his case ended. He lived the rest of his life as an American citizen, quietly, in the country that had tried to throw him out. Roughly a hundred and twenty-seven years later, his case is still the reason the delivery room at any American hospital is a doorway to citizenship. That is not an accident of history. It was a decision — made by people who had just watched a nation tear itself apart over the question of who counts.

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