Trump v. Barbara, is a landmark decision of the Supreme Court of the United States, which held that children born in the United States, including to parents unlawfully or temporarily present, are "subject to the jurisdiction" of the United States and are citizens at birth under the Citizenship Clause of the Fourteenth Amendment to the United States Constitution (1868). The Court invalidated President Donald Trump's Executive Order 14160 (2025), which would have effectively denied birthright citizenship to U.S.-born children whose parents lacked U.S. citizenship or permanent residency.
In the 6–3 ruling, Chief Justice John Roberts and Justices Sonia Sotomayor, Elena Kagan, Amy Coney Barrett, and Ketanji Brown Jackson agreed, and Brett Kavanaugh agreed in part, to strike down the executive order. The Court split 5–4 on the executive order's constitutionality, with Roberts writing for the majority that the Fourteenth Amendment guarantees birthright citizenship to nearly everyone born on U.S. soil and Kavanaugh concurring based on statute. Justices Clarence Thomas, Samuel Alito, and Neil Gorsuch dissented, arguing that the executive order was not inconsistent with the Fourteenth Amendment.
The case arose when a federal district court in New Hampshire certified a nationwide class of children affected by the executive order and issued a class-wide preliminary injunction preventing its enforcement, a remedy shaped by Trump v. CASA, Inc. (2025). The Supreme Court granted the Trump administration's request for certiorari before judgment to resolve the constitutional question directly. Barbara led headlines and was regarded as one of the most high-stakes tests of the scope of the Citizenship Clause since the decision in United States v. Wong Kim Ark (1898), which both sides cited as precedent and which discussed the domicile of Wong Kim Ark's parents.
The Court rejected the administration's argument that precedent limited birthright citizenship to children of U.S.-domiciled parents, holding that Wong Kim Arks discussion of domicile described the case's facts without limiting the constitutional requirement. It also rejected the argument that the Fourteenth Amendment's ratifiers intended such a limitation. Drawing on English common law and precedent including Lynch v. Clarke (1844), it reaffirmed the long prevailing understanding of the Citizenship Clause. It confirmed that neither the president by executive order nor Congress by statute may deny citizenship at birth to persons recognized as citizens by the Fourteenth Amendment, leaving broad changes to birthright citizenship to the constitutional amendment process.
Background Citizenship Clause The Supreme Court ruled in Dred Scott v. Sandford (1857) that people of African descent, including descendants of enslaved people, could not be citizens of the United States. To repudiate Dred Scott, Congress and U.S. states constitutionalized the issue in the Citizenship Clause of the Fourteenth Amendment to the United States Constitution (1868): "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."
In United States v. Wong Kim Ark (1898), the Supreme Court held that a child born in the United States to noncitizen parents domiciled there was a citizen at birth, subject to narrow recognized exceptions such as children of foreign diplomats and members of tribal nations.
Modern interpretations Debate stirred over the meaning of the Citizenship Clause, even among mostly originalist scholars. Defending a broad reading, Michael D. Ramsey, Keith Whittington (with James Heilpern), Akhil Reed Amar, Vikram Amar (with Jason Mazzone), and (initially) James Ho argued that the clause granted citizenship to almost anyone born on American soil. Narrow readings by Kurt Lash or (differently) by Ilan Wurman (with Randy Barnett) argued that "subject to the jurisdiction thereof" required an allegiance or domicile unmet by temporary, unlawful presence.
Executive Order 14160 As promised in his 2024 presidential campaign, President Donald Trump's second administration cracked down on immigration, partly by ordering federal executive departments not to recognize the U.S. citizenship of children born in the U.S. to illegal immigrants or travel visa holders (Executive Order 14160, "Protecting the Meaning and Value of American Citizenship"):
Initial litigation In San Francisco, where the U.S.-born Wong Kim Ark had sued the government for recognition of his citizenship after being detained under the Chinese Exclusion Act of 1882 and where Chinese and Chinese Americans organized against the executive order, City Attorney David Chiu was concerned that the order "would create a permanent generation of folks who have never lived anywhere else but are considered undocumented". He stood with Wong's great-grandson, a cook, who criticized the executive order as divisive.
The government asserted that the executive order ended birthright citizenship and related benefits for the U.S.-born children of undocumented immigrants, an issue that President Trump and his supporters viewed as critically important. Legal commentators widely considered birthright citizenship settled law under longstanding precedent. The executive order aimed to test that understanding in court and risked the birthright citizenship of about 250,000 U.S.-born children annually, including some 150,000 annually whose parents were not legal permanent residents.
Trump v. CASA Many district court judges quickly blocked the order by issuing universal injunctions, including Judge Deborah Boardman, who said "no court in the country has ever endorsed the president's interpretation. This court will not be the first." These cases were consolidated into Trump v. CASA, Inc. (2025). The Trump administration asked the US Supreme Court to limit the injunctions to the plaintiffs who were suing against the order. On June 27, 2025, the Supreme Court ruled 6–3 that federal district courts generally cannot issue nationwide injunctions, avoiding the underlying birthright citizenship question. Justice Brett Kavanaugh appeared to endorse class-wide injunctions in his concurring opinion.
Barbara v. Trump The day of the court's ruling in Trump v. CASA, the American Civil Liberties Union, seeing a class action as the best means to challenge the order, filed Barbara v. Trump, asking the United States District Court for the District of New Hampshire to grant a class-wide injunction covering those who would not qualify for birthright citizenship under the executive order. The representative plaintiff, Barbara, a Honduran citizen, is only known by her first name because she fears for her and her family's safety. CASA de Maryland filed a similar motion as well. On July 10, 2025, Judge Joseph Laplante granted the ACLU's request, certified a class of born and unborn babies who would be deprived of their citizenship per the administration's policy, and issued a preliminary injunction blocking the order from being enforced upon that class.
Washington v. Trump A separate case, Washington v. Trump (2025), that had been consolidated with Trump v. CASA at the Supreme Court and similarly had its nationwide injunction lifted, was heard in full in June 2025 by the United States Court of Appeals for the Ninth Circuit. On July 23, 2025, that court ruled that Trump's executive order was unconstitutional, the first appeals court to reach this finding, and deemed that this case necessitated a national injunction based on the Supreme Court's limited exceptions outlined in CASA. Though the administration had also petitioned this decision to the Supreme Court, it had not been picked up along with Barbara.
Supreme Court The Trump administration petitioned the Supreme Court in September 2025, challenging the district court's injunction in Barbara and asserting high stakes. In December 2025, the Supreme Court granted certiorari before judgment as permitted by its procedures "upon a showing that the case is of such imperative public importance as to justify deviation from normal appellate practice and to require immediate determination". The question was "whether the Executive Order complies on its face with the Citizenship Clause and with 8 U.S.C. § 1401(a), which codifies that Clause."
Writing for the American Bar Association, legal scholar Steven D. Schwinn described the legal change that could be effected by a ruling in the government's favor as "seismic" but expected the government to face an uphill battle, given the Court's emphasis on "history, tradition, and original understanding." Legal scholar Michael C. Dorf also expected the executive order to be struck down but cautioned that the Roberts Court seemed unpredictable. Puzzled by the Court's granting of certiorari, he speculated on possible explanations (e.g., justices' interest, institutional caution, nonpartisanship signaling).
Amicus briefs For petitioners Eighteen amici curiae were filed in support of President Trump, including New York University law professor Richard Epstein, legal scholars Hans von Spakovsky and Ilan Wurman, Senators Ted Cruz and Eric Schmitt, Representatives Claudia Tenney, Chip Roy, and 27 other Republican members of Congress, Gun Owners of America, the organization Citizens United, and the Conservative Legal Defense and Education Fund, the Republican attorneys general of 25 U.S. states and Guam, and the Federation for American Immigration Reform.
For respondents After the class respondents filed their brief on February 19, 2026, they were joined in condemnation of the order by briefs in 42 from across the legal profession, civil rights groups, and others. Organizations writing in response included the National Association for the Advancement of Colored People (NAACP), the League of Women Voters, and the National Urban League, as well as more than 200 other immigrants' rights, legal defense, civil rights, veterans' rights nonprofits and organizations, 19 labor unions, hundreds of legal scholars and professors, and scholars on migration, sociology, economics, and political science.
Support also came from elected officials, including 217 Democratic members of Congress, more than 130 state and local governments and dozens of current and former judges, and over a dozen "former White House lawyers, senior government officials, federal judges, governors, and members of Congress who were appointed or nominated by Republican presidents, or who were elected as Republicans."
Oral arguments Oral arguments were heard on April 1, 2026. Trump attended a portion of the session, the first time any sitting president had done so. Fox News viewed this as a sign of Barbaras importance to him and its nature as a "landmark case, which could upend more than 100 years of precedent that has allowed most babies born in the U.S. to receive automatic citizenship." John Eastman, a legal scholar better known for arguments against birthright citizenship before his role in attempts to overturn the 2020 United States presidential election, also attended.
Justices did not acknowledge Trump, who sat calmly in the front row of the public gallery. Parents of children in the plaintiff class did not attend. U.S. solicitor general D. John Sauer spoke about twice as much as the ACLU's Cecillia Wang. Questioning was mild but skeptical of Sauer's arguments, as Trump heard. Arguments centered on historical understandings of the Fourteenth Amendment, including precedent like Wong Kim Ark, which Wang said controlled the case. Among the disagreements were whether factual references to "domicile" in that case were also relevant to the reasoning.
Sauer's argument