In United States v. Wong Kim Ark, decided on March 28, 1898, the Supreme Court ruled 6–2 that a child born on American soil is a citizen of the United States under the Fourteenth Amendment, regardless of the parents’ nationality or their eligibility to naturalize. The decision remains the controlling authority on birthright citizenship, and it is the precedent squarely in the path of the 2025 executive order now before the Court.
The Man at the Center of the Case
Wong Kim Ark was born in San Francisco in 1873 to parents who were subjects of the Emperor of China and permanent residents running a business in the city.1National Archives. Departure Statement of Wong Kim Ark, 1894 The Chinese Exclusion Act of 1882 made it legally impossible for his parents to become naturalized citizens.2National Archives. Chinese Exclusion Act (1882)
He had traveled to China once before and returned without trouble. When he came back from a second trip in August 1895, the customs collector at San Francisco refused to let him land, claiming he was not a citizen and fell under the exclusion laws.1National Archives. Departure Statement of Wong Kim Ark, 1894 The government’s theory was simple: because his parents could never naturalize, Wong Kim Ark inherited their foreign allegiance and was not “subject to the jurisdiction” of the United States. A federal district judge disagreed and ordered him released, and the government appealed directly to the Supreme Court.3Justia U.S. Supreme Court Center. United States v. Wong Kim Ark
What the Supreme Court Held
Justice Horace Gray, writing for the majority, tied the Fourteenth Amendment’s Citizenship Clause to centuries of English common law reaching back to Calvin’s Case in 1608. Under that tradition, anyone born within the sovereign’s territory and under its protection was a natural-born subject, whatever the parents’ nationality. Gray held that the framers of the Fourteenth Amendment adopted that same rule.
The amendment, he wrote, “affirms the ancient and fundamental rule of citizenship by birth within the territory, in the allegiance and under the protection of the country, including all children here born of resident aliens.”4Cornell Law Institute. United States v. Wong Kim Ark The phrase “subject to the jurisdiction thereof” meant being present within the country’s borders and bound to obey its laws. It did not require political allegiance, the right to vote, or eligibility to naturalize.
Applied to the facts, the rule was straightforward. A child born in the United States to parents of Chinese descent, who held permanent residence, carried on business here, and served in no diplomatic capacity, “becomes at the time of his birth a citizen of the United States, by virtue of the first clause of the Fourteenth Amendment.”3Justia U.S. Supreme Court Center. United States v. Wong Kim Ark Congress could regulate immigration, but it could not use ordinary legislation to strip a constitutional guarantee from someone who acquired citizenship at birth.
The Dissent and Why It Still Echoes
Chief Justice Melville Fuller, joined by Justice John Marshall Harlan, argued that the majority had grafted a feudal English rule onto a Constitution built on the consent of the governed. In Fuller’s reading, “subject to the jurisdiction” required complete political allegiance, not mere physical presence, and children of foreign subjects could not meet that test. He also warned that the majority’s rule placed birthright citizenship beyond congressional reach entirely.3Justia U.S. Supreme Court Center. United States v. Wong Kim Ark
Fuller’s position has never commanded a majority on the Court, but the disagreement he framed — jurisdiction as territorial presence versus jurisdiction as political allegiance — is the same fault line that runs through every modern effort to narrow the Citizenship Clause.
Who Is Not Covered by the Rule
The majority opinion set out narrow categories of people born on American soil who do not acquire citizenship at birth:
- Children of accredited foreign diplomats, because diplomatic immunity places them outside U.S. jurisdiction. USCIS today checks whether a parent appeared on the State Department’s Diplomatic List (the “Blue List”) at the time of birth. Consular officers, whose immunities are more limited, are not treated the same way, and their children born here generally are citizens.5U.S. Citizenship and Immigration Services. Children Born in the United States to Accredited Diplomats
- Children born on foreign public ships in American waters, since those vessels are treated as extensions of the foreign sovereign’s territory.4Cornell Law Institute. United States v. Wong Kim Ark
- Children born in territory under hostile occupation by an enemy force during wartime. This exception has never been tested in practice.
- Children of members of Native American tribes, who the Court said owed “direct allegiance to their several tribes.”4Cornell Law Institute. United States v. Wong Kim Ark
The tribal exception drew on Elk v. Wilkins (1884), which held that a Native American born into a recognized tribe was not a citizen under the Fourteenth Amendment, even after leaving the tribe.6Justia U.S. Supreme Court Center. Elk v. Wilkins Congress closed that gap by statute in 1924, when President Calvin Coolidge signed the Indian Citizenship Act, declaring “all non-citizen Indians born within the territorial limits of the United States” to be citizens.7National Archives. Indian Citizenship Act of 1924 The general rule is now also codified in federal statute at 8 U.S.C. § 1401.8Office of the Law Revision Counsel. 8 USC 1401 – Nationals and Citizens of United States at Birth
Why the Case Is in the News Again
For more than a century, Wong Kim Ark was treated as settled. That changed on January 20, 2025, when President Donald Trump signed Executive Order 14160, titled “Protecting the Meaning and Value of American Citizenship.” The order directs federal agencies to stop recognizing citizenship for children born in the United States to mothers who are either unlawfully present or present only on temporary legal status, unless the father is a citizen or lawful permanent resident.9Federal Register. Executive Order 14160 – Protecting the Meaning and Value of American Citizenship
Multiple federal courts blocked the order almost immediately. The challenges consolidated into Trump v. Barbara, which the Supreme Court heard on April 1, 2026. At argument, the government revived a version of the losing theory from 1898, contending that the Citizenship Clause was originally meant to cover formerly enslaved people and their descendants rather than the children of all immigrants. As of mid-2026, the case has not been decided.
Every lower court to review the order has found it conflicts with both the Fourteenth Amendment and Wong Kim Ark. Whether the Supreme Court agrees will determine whether a 6–2 ruling from 1898 still defines who counts as an American at birth.