What the case is about

President Trump signed an executive order on 20 January 2025 directing federal agencies to deny citizenship documents to children born in the United States to parents who are in the country without legal status or on temporary visas. Every federal court that has considered a challenge to the order has struck it down. The order has never taken effect. The Supreme Court agreed to hear the case, styled Trump v. Barbara, and heard oral arguments on 1 April 2026.

Trump attended the session in person — the first sitting president in US history to attend oral arguments at the Supreme Court.

Why it matters

An estimated 150,000 children are born annually in the United States to parents without legal status. If the executive order were upheld, those children would be denied US citizenship at birth despite being born on American soil. The case also raises a constitutional question that has not been definitively adjudicated since an 1898 Supreme Court ruling: whether the 14th Amendment’s citizenship clause applies to all persons born in the US regardless of their parents’ immigration status.

The administration’s argument

US Solicitor General D. John Sauer told the court that the 14th Amendment was enacted specifically to grant citizenship to formerly enslaved people and their descendants, not to create a universal rule applying to children of temporary visitors or undocumented immigrants. He argued that in the decades after the amendment’s adoption, commentators widely understood that children of temporary visitors were not covered, and that most countries do not extend birthright citizenship. The administration’s position is that the clause requires “subject to the jurisdiction thereof” to mean something narrower than physical presence on US soil.

The opposing argument

The American Civil Liberties Union’s Cecillia Wang argued that the 14th Amendment was written after the Civil War to establish a clear, universal rule of citizenship subject to a closed set of narrow exceptions — none of which apply to children of undocumented immigrants. Wang told the court that accepting the administration’s interpretation would require “radically re-engineering the original meaning” of the amendment based on current policy preferences rather than historical text.

What the justices indicated

According to reporting by NPR and SCOTUSblog, a majority of justices across both conservative and liberal wings appeared sceptical of the Solicitor General’s position. Several conservative justices pressed Sauer on the historical record and the scope of the exceptions he argued for. No ruling was issued from the bench. The court’s decision is expected before the end of June 2026.

What happens next

The executive order remains blocked by lower court injunctions while the Supreme Court deliberates. If the court rules against the administration, the order will be permanently invalidated. If the court rules in favour of the administration, lower courts would need to determine the precise scope of the ruling before implementation. Either outcome is expected to be appealed further if it does not produce a clear constitutional resolution.