On 30 June the US Supreme Court struck down President Trump’s 2025 executive order on birthright citizenship by six votes to three. On 6 August he signed a new one. It quotes the ruling that beat him and treats a single phrase from it as an opening.

Executive Order 14418 runs to two pages in the Federal Register. By late August the page had been viewed around 1,300 times in three weeks, which for a presidential document touching the Fourteenth Amendment is close to invisible.

What the court decided

The case was Trump v. Barbara, argued on 1 April and decided on 30 June. The question was whether the Constitution guarantees citizenship to children born in the United States to parents who are here unlawfully or temporarily.

Chief Justice Roberts wrote for the majority, joined by Justices Sotomayor, Kagan, Barrett and Jackson. The Court held that such children are subject to the jurisdiction of the United States and are citizens at birth, and that Executive Order 14160 of January 2025 violated the Citizenship Clause by enforcing a narrower class of citizens than the Constitution requires. The opinion worked through the drafting history of the Fourteenth Amendment and the authoring Congress’s deliberate repudiation of Dred Scott, and rested on the 1898 precedent United States v. Wong Kim Ark.

Justice Thomas dissented, joined by Justice Gorsuch; Gorsuch and Justice Alito wrote separately. Justice Kavanaugh concurred in the judgment and dissented in part.

The order that followed

EO 14418 opens by citing that decision, and specifically the majority’s observation that the Citizenship Clause covers children born to parents in the United States “for whom no extraterritorial fiction applie[s]”. The order then states that it identifies, non-exhaustively, categories of children who in the administration’s view fall outside the rule the Court announced.

The operative instruction is that no federal department or agency may issue documents recognising US citizenship to certain people, and — this is the part with teeth — may not accept documents issued by state, local or other authorities purporting to recognise their citizenship. A state birth certificate would not, on its own, get a passport or a Social Security number.

It applies only where neither parent is a US citizen, and where one of four conditions is met.

The four categories

Terrorism designations. Either parent is an “alien enemy”, which the order defines as a member of a designated Foreign Terrorist Organization under 8 U.S.C. 1189, or a Specially Designated Global Terrorist under the International Emergency Economic Powers Act and Executive Order 13224 of September 2001. That last citation is the striking one: a counterterrorism sanctions instrument written three weeks after the 11 September attacks is here being used to determine whether an American-born baby is American.

Foreign government employment. Either parent is an ambassador, an embassy or consulate employee who is a national of that country, a person employed by a foreign government in an official capacity, or an employee of an international organisation holding international-organization immunity.

Paid arrangements. Either parent engaged in a commercial transaction to purchase or access birthright citizenship, or in fraud to obtain citizenship. The order gives two examples: paying to ensure the mother is present in the United States to give birth, and entering a commercial arrangement with a surrogate who is present in the United States to give birth.

Territories. The child is born in a US territory or in US territorial waters where citizenship is not conferred by federal statute.

What is contested

Supporters of the order argue it does nothing new. There has always been a jurisdictional exception for the children of foreign diplomats, they point out, and the Supreme Court left that exception standing. On this view the order simply spells out who sits inside a carve-out the Court itself acknowledged, and the paid-arrangement category targets fraud rather than birth.

Critics counter that the traditional exception is far narrower than the second category as drafted. It has historically applied to accredited diplomats with full diplomatic immunity, on the reasoning that they are not subject to US law at all. An embassy driver, a consular clerk or a staff member at an international organisation is generally subject to US law, and extending the exception to them, on this argument, is not clarification but expansion.

The territories provision reaches an old and unresolved dispute. American Samoans are US nationals rather than citizens by statute, a status that has been litigated repeatedly and that some American Samoan leaders have defended as protective of communal land rights while others have challenged it as a colonial relic.

The surrogacy provision has drawn a separate objection: it makes a child’s citizenship turn on a contract between adults that the child had no part in, and would apply to arrangements that are lawful in the states where they occur.

The word doing the most work

The order says its list is non-exhaustive. That single word means the four categories are a starting position rather than a boundary, and that further categories can be added by the same route without returning to Congress or the courts. It also carries a severability clause, so that if one category is struck down the rest survives — a drafting choice that anticipates litigation and is designed to limit the damage from losing.

A companion order signed the same day, EO 14419, is titled Ending Birth Tourism. A legal challenge to the new birthright order was reported within days of publication.

What to watch

The order instructs the Secretary of State, the Attorney General, the Secretary of Homeland Security and the Commissioner of Social Security to bring their rules into line, and requires every agency head to publish implementation guidance within 30 days of signature — which falls around 5 September.

That guidance is where the abstraction becomes concrete: it will show which documents a passport clerk is expected to demand, and from whom. It is worth reading when it appears, and it is the sort of document that usually appears without a headline.

Sources

Executive Order 14418, 91 FR 51991 (Federal Register, 11 August 2026); Trump v. Barbara, No. 25-365 (US Supreme Court, 30 June 2026); Congressional Research Service Legal Sidebar LSB11468; SCOTUSblog.