The Supreme Court will hear arguments Wednesday in a case that could reshape whether most children born in the United States automatically become U.S. citizens. The dispute arises from an executive order issued by President Trump on the first day of his second term that seeks to end automatic citizenship for babies born here to parents who entered the country unlawfully or who were present only temporarily on visas.
President Trump and some allies argue that the Constitution does not guarantee birthright citizenship. He has called the practice “absolutely ridiculous” and said the United States is unusual in offering it. In fact, roughly 33 countries — many in the Americas, including Canada, Mexico, Brazil and Argentina — also grant citizenship to almost anyone born on their soil.
To grasp the stakes, it helps to recall the legal history. The original Constitution did not define citizenship, and the founding generation favored encouraging settlement. Citizenship was explicitly defined after the Civil War in the 14th Amendment, adopted in part to overturn the Supreme Court’s Dred Scott decision, which had held that Black people could not be U.S. citizens. The amendment provides, among other things, that “all persons born or naturalized in the United States and subject to the jurisdiction thereof, are citizens of the United States.”
Two competing readings of that clause are central to the case. Supporters of a narrow interpretation say the clause was aimed primarily at making formerly enslaved people and their descendants citizens and therefore should not automatically cover children born to foreign nationals whose allegiance belongs elsewhere. That argument stresses historical language and some earlier judicial passages suggesting parental allegiance matters.
Scholars who defend a broad reading of the Citizenship Clause emphasize multiple purposes behind the amendment: to create a clear citizenship rule, to protect former slaves and their children, and to include immigrants. University of Virginia law professor Amanda Frost, who has written about the clause’s history, notes that waves of 19th-century immigration produced U.S.-born children who were treated as citizens under the 14th Amendment.
The key precedent likely to shape the Court’s decision is United States v. Wong Kim Ark, decided in 1898. Wong was born in San Francisco in 1873 to Chinese parents who later traveled to China; when he attempted to return to the U.S. he was denied entry. The Supreme Court, in a 6–2 decision, held that a child born in the United States to foreign-born parents who were subject to U.S. jurisdiction is a citizen under the 14th Amendment. The Court also recognized narrow exceptions: children of foreign diplomats, children born to occupying forces, and historically, children of Native American tribal members (the latter exception has since been addressed by statute).
The administration contends that Wong’s facts differ from many modern situations because Wong’s parents had established permanent residence, while some parents today are undocumented or in the country temporarily. Groups aligned with the administration argue that a child’s citizenship should turn on the parents’ legal status and allegiance, treating unauthorized entry as evidence the parents lack allegiance to the United States.
Opponents of the executive order say the amendment’s text and history show the framers intended citizenship to vest at birth and that children should not be penalized for their parents’ conduct. The ACLU and other civil-rights groups argue that an executive order cannot rewrite a constitutional guarantee established by Congress and the states after lengthy debate in the 1860s.
Humanitarian and practical consequences figure prominently in the opposition’s case. Stripping citizenship from large numbers of U.S.-born children could leave many stateless if parents’ home countries do not recognize them. Religious organizations and immigrant-rights groups warn that generations of stateless children could become a permanent underclass, lacking nationality and basic legal protections.
The administration also cites national security concerns and the phenomenon of “birth tourism,” where people travel to the U.S. to give birth so the child gains citizenship. Critics acknowledge such cases exist but note they are a tiny fraction of U.S. births. Estimates place birth-tourism births at roughly 20,000–26,000 per year compared with about 3.6 million total births in the United States. Supporters of changing the rule counter that even a small number of deliberate abuses matters.
The legal continuity protecting birthright citizenship has persisted through intense episodes of immigration enforcement and wartime restrictions. For example, during World War II, Japanese Americans detained as enemy aliens nonetheless had newborn children who were citizens by birthright. Mid-20th-century congressional actions and longstanding court precedent have reinforced that understanding.
The debate also raises practical implementation questions the justices have previously pressed: how would hospitals or officials determine parents’ immigration status at the time of birth, what would happen to newborns whose parents are undocumented, and what systems would states and federal agencies use to decide citizenship? Last year, Justice Brett Kavanaugh asked how hospitals would know parents’ status and who would build any verification system; the government’s response was that federal officials would have to work out such details.
Some researchers warn of unintended long-term demographic consequences. If birthright citizenship were repealed or substantially curtailed, children born in the United States who would otherwise be citizens might remain without legal status and pass that status on to their own children, potentially increasing the undocumented population. A study by the Population Research Institute at Penn State estimated that revoking birthright citizenship could add millions more people living here without legal status by mid-century.
The case has drawn political filings on both sides. Republican lawmakers and conservative groups filed briefs supporting the administration’s position, while civil-rights organizations, immigrant-rights advocates and many religious leaders urged the Court to preserve the longstanding interpretation of the 14th Amendment.
At the heart of the dispute is a constitutional question: can the executive branch, by proclamation, alter a protection that has guided American law for roughly 160 years, or does the text of the Citizenship Clause and Supreme Court precedent — especially Wong Kim Ark — continue to mean that almost everyone born on U.S. soil is a citizen? The Court’s ruling will have broad legal, social and humanitarian consequences for children born in the United States now and for generations to come.