The Supreme Court will hear arguments Wednesday in a case that could reshape U.S. citizenship law: whether the 14th Amendment’s guarantee that “all persons born or naturalized in the United States and subject to the jurisdiction thereof” includes every child born on American soil. The dispute stems from an executive order issued by President Trump on the first day of his second term that would bar automatic citizenship for babies born here to parents who entered unlawfully or who are in the country on temporary visas.
Trump and his supporters contend that the 14th Amendment was not intended to confer citizenship so broadly. They say the provision was aimed at protecting the children of formerly enslaved people, not every child born in the United States, and argue that citizenship should depend in part on parents’ allegiance. Advocates for the administration, including Daniel Epstein of America First Legal, assert that unlawful entry or temporary status indicates a lack of allegiance and point to birth tourism and other perceived abuses as reasons to narrow the rule.
Opponents call the order an unprecedented attempt to rewrite the Constitution by executive fiat. The ACLU’s Cecillia Wang and other critics emphasize that the amendment grants citizenship to the child, not the parent, a long-standing principle that children should not be penalized for their parents’ actions. They warn that immediate enforcement would render tens of thousands of U.S.-born infants noncitizens each month and could create a permanent, possibly stateless population if foreign governments do not recognize those children.
Legal historians trace the issue back to the post–Civil War era. The 14th Amendment was adopted to overturn rulings like Dred Scott, which denied citizenship to Black people, and to establish a clear national rule that children born in the United States are citizens. University of Virginia law professor Amanda Frost stresses that Congress intended a bright-line definition that would protect children of former slaves and immigrants alike.
The most important precedent is the 1898 decision in United States v. Wong Kim Ark. Wong was born in San Francisco to Chinese parents who later returned to China; when he sought to return to the United States, authorities denied him entry on the grounds that he was not a citizen. The Supreme Court, 6–2, ruled that a person born in the United States to parents subject to U.S. jurisdiction is a citizen. The Court identified limited exceptions—children of foreign diplomats, occupying armies and members of Native American tribes—of which only the diplomatic exception remains broadly applicable today.
The administration seeks to distinguish Wong by arguing that his parents were effectively permanent residents subject to U.S. jurisdiction, unlike people who entered illegally or who hold only temporary visas. Critics counter that judicial and historical practice have long read the citizenship clause broadly. They cite examples such as recognition of citizenship for children born to Japanese Americans in World War II detention camps and mid-20th-century legislation that reinforced the prevailing interpretation.
Policy debates feature prominently. Supporters of restricting birthright citizenship, including Senator Ted Cruz and other Republican lawmakers, argue that the rule creates an incentive for illegal immigration and rewards lawbreaking. Opponents point to data showing that “birth tourism” accounts for a small fraction of about 3.6 million U.S. births annually—estimates place it at roughly 20,000–26,000 births per year—and argue that removing birthright citizenship could produce unintended consequences, including an increase in the undocumented population. The Penn State Population Research Institute projects that repealing the broad application of the clause could add millions to the undocumented population by 2045.
Practical implementation raises immediate concerns. Hospitals, states and federal agencies would face difficult questions about how to determine a newborn’s citizenship at birth, what documents would be required, and who would enforce any new rules. Justice Brett Kavanaugh has previously expressed skepticism about how such a system would work in practice; the Trump administration’s solicitor general has said federal officials would need to work out the logistics.
At the Supreme Court, justices are expected to revisit Wong Kim Ark and other precedents that have guided 160 years of practice. The decision could settle whether an executive order can effectively change the meaning of a constitutional amendment ratified after the Civil War, or whether the 14th Amendment’s citizenship clause remains the bright-line rule that has long governed birthright citizenship in the United States.