Trump v. Barbara: The Birthright Citizenship Case Explained

Trump v. Barbara is the Supreme Court case that will decide whether President Trump can end birthright citizenship by executive order for children born in the United States to parents who are undocumented or in the country on a temporary basis. Filed as a nationwide class action in the federal district court in New Hampshire, it reached the Court on an accelerated schedule, was argued on April 1, 2026, and a decision is expected by late June or early July 2026.¹

The Executive Order Behind the Case

On January 20, 2025, President Trump signed Executive Order 14,160, “Protecting the Meaning and Value of American Citizenship.” It declared that children born in the United States would no longer automatically be U.S. citizens if neither parent was a citizen or lawful permanent resident at the time of birth. Two groups of children were targeted: those whose mothers were unlawfully present, and those whose mothers were lawfully present on a temporary basis, such as a student, work, or tourist visa. The order applied to births occurring more than 30 days after it was signed, making February 19, 2025 the effective cutoff.²

The reach of the order is wider than “unlawful presence” alone suggests. A USCIS implementation memo classified recipients of Temporary Protected Status, DACA, humanitarian parole, asylum applicants, T and U visa holders, and citizens of Micronesia, the Marshall Islands, and Palau under Compacts of Free Association as having “lawful but temporary” status for purposes of the order.³ Under the order, federal agencies would stop issuing passports, Social Security cards, and other citizenship documents to affected children.²

How the Case Reached the Supreme Court

The order was blocked almost immediately by nationwide injunctions from federal judges in Washington, Maryland, and Massachusetts. But on June 27, 2025, in Trump v. CASA, the Supreme Court ruled 6-3 that federal courts lack authority to issue universal injunctions. Justice Barrett’s majority opinion, joined by Justices Thomas, Alito, Gorsuch, and Kavanaugh, held that such sweeping relief has no basis in the equity tradition and must be confined to the plaintiffs before the court. Justice Sotomayor dissented, joined by Justices Kagan and Jackson.⁴

CASA did not decide whether the executive order itself was constitutional. It dissolved the nationwide protections that had kept the order dormant, but left one door open: class-action injunctions under Federal Rule of Civil Procedure 23 could still provide broad relief if a class was properly certified.⁵

The ACLU walked through that door the same day. Barbara v. Trump was filed in the District of New Hampshire on June 27, 2025, with pseudonymous plaintiffs — Barbara, Sarah, and Matthew — representing children who would be denied citizenship. Barbara was identified as a Honduran asylum applicant living in New Hampshire.⁶ On July 10, 2025, U.S. District Judge Joseph Laplante provisionally certified a nationwide class covering “all current and future persons” born on or after February 20, 2025, who fit the parental-status criteria in the order, and issued a preliminary injunction blocking enforcement. He found a “strong likelihood of success” on the merits, writing that the order “flouts the plain language of the Fourteenth Amendment… conflicts with binding Supreme Court precedent, and runs counter to our nation’s 250-year history of citizenship by birth.”⁷

The government appealed to the First Circuit on September 5, 2025, but the Solicitor General also asked the Supreme Court to take the case before the appeals court could rule.⁸ On December 5, 2025, the Court granted certiorari before judgment.⁹

The Constitutional Question

The case turns on five words in the Fourteenth Amendment’s Citizenship Clause: “subject to the jurisdiction thereof.” The full clause reads: “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.”

Solicitor General D. John Sauer argues those words require more than physical presence. In his reading, “jurisdiction” means “direct and immediate allegiance” to the United States, which he equates with lawful domicile. Because undocumented immigrants and temporary visitors cannot establish permanent domicile, their U.S.-born children fall outside the clause. The administration points to the Slaughter-House Cases and Elk v. Wilkins as evidence of a narrower original understanding, and casts the Fourteenth Amendment as chiefly aimed at overruling Dred Scott and securing citizenship for formerly enslaved people.¹⁰

The challengers say this reading would require “a remaking of our Nation’s constitutional foundations.” Their central precedent is United States v. Wong Kim Ark, the 1898 decision holding that a child born in San Francisco to Chinese parents who were not U.S. citizens was a citizen by birth. They also argue the order independently violates 8 U.S.C. § 1401, the statute Congress enacted to codify the same principle.¹⁰¹¹

Several justices sounded skeptical of the government. Chief Justice Roberts, responding to Sauer’s argument that modern immigration realities justified a new reading, said: “It’s a new world. It’s the same Constitution.” Justice Gorsuch called the absence of any reference to parents or domicile in the amendment’s text and drafting debates “striking.”¹³ Justice Kagan challenged Sauer’s reliance on what she called “obscure sources,” and Justice Jackson raised concern that tying citizenship to domicile as defined by Congress would undermine the amendment’s original purpose of limiting congressional power over citizenship.¹⁴

Justice Barrett, a possible swing vote, pressed a practical point: how could citizenship be adjudicated at birth if it depended on a parent’s intent to remain? “You’re not going to know at the time of birth for some people whether they have the intent to stay or not.”¹³ Wang, who is herself a birthright citizen, anchored her argument in Wong Kim Ark and the text of the clause, maintaining that virtually everyone born on U.S. soil is a citizen, with narrow exceptions for children of foreign diplomats and hostile occupying forces.¹⁵ Post-argument analysis suggested a 7-2 or 6-3 outcome for the challengers, with Justices Thomas and Alito as the likely dissenters.¹⁶

What’s at Stake for Families

If the order were upheld, children born under it would be unable to obtain U.S. passports or Social Security cards. They would lose access to federal programs including CHIP, SNAP, and Medicaid, and would be barred from voting, jury service, and certain jobs. Some could face statelessness if their parents’ home countries do not extend citizenship to children born abroad. Birth certificates would no longer function as proof of citizenship, and a new verification system would have to investigate parental immigration status at every birth. Estimated costs to affected families run to roughly $600 in government fees plus $600 to $1,000 in legal fees per child.¹⁷

Where Things Stand

The executive order remains blocked by Judge Laplante’s class-based preliminary injunction while the Supreme Court considers the case. A decision is expected by late June or early July 2026.¹⁸ Because the class certified by Judge Laplante covers children born on or after February 20, 2025, the ruling will determine the citizenship status of every child born under the order’s cutoff whose parents fit its criteria.⁷

1
SCOTUSblog. Trump v. Barbara
2
The White House. Protecting the Meaning and Value of American Citizenship
3
USCIS. Implementation Plan of Executive Order 14160
4
Supreme Court of the United States. Trump v. CASA, Inc.
5
SCOTUSblog. Where Does Birthright Citizenship Order Currently Stand
6
FindLaw. Barbara v. Trump
7
Civil Rights Litigation Clearinghouse. Barbara v. Trump
8
Supreme Court of the United States. Trump v. Barbara Certiorari Petition
9
Supreme Court of the United States. Docket for No. 25-365
10
SCOTUSblog. The Key Arguments in the Birthright Citizenship Case
11
Brennan Center for Justice. Argument Analysis: What the Transcript Tells Us
13
SCOTUSblog. Birthright Citizenship Oral Argument Highlights
14
Supreme Court of the United States. Oral Argument Transcript, No. 25-365
15
New York Times. Cecillia Wang, the ACLU Lawyer, Is a Birthright Citizen
16
SCOTUSblog. What Oral Argument Told Us in the Birthright Citizenship Case
17
Asian Law Caucus. Know Your Rights: Trump’s Birthright Citizenship Executive Order
18
ACLU. Supreme Court Arguments Wrap in Landmark Challenge to Trump Birthright Citizenship Executive Order