Defines Who Belongs
Birthright citizenship determines who automatically becomes an American at birth, shaping the size and makeup of the U.S. citizenry.
In plain English
Born on U.S. soil means citizen.
If you're born in the United States, you're an American citizen — no matter who your parents are.
Simple example
In United States v. Wong Kim Ark (1898), the Supreme Court ruled that a man born in San Francisco to Chinese parents who were not U.S. citizens was nonetheless a U.S. citizen under the Fourteenth Amendment.
Why it matters
What the term actually changes.
Immigration Debate
It sits at the center of debates over illegal immigration, with supporters calling it a core civil rights protection and critics arguing it encourages unauthorized border crossings.
Constitutional Stakes
Changing the policy could require amending the Constitution or testing the limits of congressional power, raising major legal questions.
How it works
The mechanics, in practice.
Constitutional Basis
The Fourteenth Amendment's Citizenship Clause grants citizenship to all persons born in the U.S. and 'subject to the jurisdiction thereof,' a phrase courts have interpreted broadly.
Automatic At Birth
A child born on U.S. soil is issued a U.S. birth certificate, which serves as proof of citizenship for purposes such as passports and federal benefits.
Limited Exceptions
Narrow exceptions apply to children of foreign diplomats and, historically, certain others not considered 'subject to' U.S. jurisdiction.
Related guide
What is birthright citizenship, and could it be ended?
A look at the constitutional rule that grants citizenship to nearly everyone born on U.S. soil — and the debate over whether to change it.
Read the guide → Related issue brief
Should the United States end birthright citizenship?
A long-standing constitutional guarantee has become a renewed flashpoint in the national debate over immigration policy.
Read the brief →You’ve learned the term. Now vote.
Should the United States end birthright citizenship?
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