Trump v. CASA, Inc. is a major 2025 U.S. Supreme Court case concerning Executive Order 14160, issued by President Donald Trump on January 20, 2025. The order—titled “Protecting the Meaning and Value of American Citizenship”—attempted to deny U.S. citizenship to certain children born in the United States if their parents were undocumented or temporary visitors. The litigation raises two central questions:
Is the Executive Order constitutional under the Fourteenth Amendment’s Citizenship Clause?
Can lower courts issue nationwide (universal) injunctions blocking the enforcement of federal policies?
President Trump’s EO 14160 argues that the original meaning of the Fourteenth Amendment granted citizenship only to “children of former slaves,” not the U.S.-born children of undocumented immigrants or temporary visitors.
Soon after the order was issued, multiple federal district courts granted nationwide injunctions preventing the government from enforcing it. According to the Solicitor General, 40 universal injunctions were issued within weeks, many from the same small group of districts .
The federal government appealed these injunctions, arguing that nationwide injunctions violate Article III and exceed traditional equitable powers.
The government, represented by General D. John Sauer, presented several key arguments:
The government argued that the Citizenship Clause was intended only to cover formerly enslaved people, not children of undocumented immigrants or temporary visitors.
The government claimed that nationwide injunctions:
exceed Article III authority,
prevent normal “percolation” of legal questions,
encourage forum shopping,
disrupt separation of powers,
and force courts into emergency decision-making.
Instead, the issue should reach the Supreme Court only after multiple lower courts have weighed in.
Respondents included states (such as New Jersey) and private plaintiffs. Their arguments focused on constitutional text, precedent, and practical harm.
Respondents stressed that the Fourteenth Amendment’s plain language grants citizenship to “all persons born … in the United States” and that Supreme Court precedent—especially United States v. Wong Kim Ark (1898)—squarely protects birthright citizenship regardless of parental immigration status.
One lawyer emphasized that the EO “violates four Supreme Court precedents” on citizenship, covering:
children of foreign nationals,
children of undocumented immigrants,
children born after their parents were stopped at the border,
and children whose parents obtained citizenship unlawfully.
Respondents argued that the EO would create chaos because a child’s citizenship would effectively “turn on or off when [they] cross state lines,” something the country has never allowed in its constitutional history.
States explained that they would bear the burden of enrolling newly born children in Medicaid and other programs because families would wrongly believe their children were not citizens.
Respondents argued that without nationwide relief, states and families would suffer irreparable harm and the federal government could implement an “unconstitutional citizenship-stripping scheme” before courts could fully review the matter .
Across the oral argument, justices from various ideological perspectives raised major concerns:
Several justices questioned whether the Executive Order could stand in light of longstanding birthright-citizenship precedent.
Justices asked how hospitals, states, and federal agencies would determine which newborns are citizens, or what happens when families move across state lines—a scenario the government struggled to answer convincingly.
The Court also explored whether universal injunctions should be allowed and, if not, how courts could prevent nationwide harm from an unconstitutional policy.
The decision in Trump v. CASA will have profound consequences for:
The case directly challenges a constitutional principle that has been settled since 1898.
It tests how far an executive can go in redefining constitutional rights through executive orders.
The Court may set new rules for when lower courts can block federal actions nationwide—an issue that affects immigration, healthcare, environmental policy, and more.
Trump v. CASA combines a fundamental constitutional question—Who is a citizen?—with a major structural question about judicial power. The case is one of the most significant Fourteenth Amendment and separation-of-powers disputes in recent decades, and its outcome could redefine both birthright citizenship and the power of lower federal courts.
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