The Supreme Court has ruled against the Trump administration's executive order aimed at ending birthright citizenship, affirming the longstanding constitutional interpretation that any child born on U.S. soil is a citizen regardless of their parents' immigration status. The decision preserves a policy rooted in the 14th Amendment, which has guaranteed birthright citizenship since its ratification in 1868.

The ruling delivers a major setback to one of President Trump's most prominent immigration priorities. Shortly after returning to office, Trump signed an executive order directing federal agencies to deny citizenship documents to children born in the United States to parents who are undocumented or on temporary visas. Multiple federal courts had already blocked the order before it reached the Supreme Court.

The Court's decision was widely anticipated after lower courts uniformly found the executive order unconstitutional. Legal scholars across the ideological spectrum had largely agreed that the 14th Amendment's Citizenship Clause — which states that all persons born or naturalized in the United States and subject to its jurisdiction are citizens — does not grant the executive branch authority to unilaterally redefine birthright citizenship without a constitutional amendment.

The administration had argued that the phrase 'subject to the jurisdiction thereof' in the 14th Amendment provided room for a narrower interpretation that could exclude children of undocumented immigrants. That argument failed to gain traction with the justices. The ruling is considered one of the most significant immigration decisions in decades and forecloses the executive order pathway for changing birthright citizenship policy.

Proponents of the ruling celebrated it as a reaffirmation of constitutional protections, while critics of birthright citizenship argued the issue ultimately requires congressional or constitutional action if the policy is to change. The decision is expected to have immediate practical effects, halting any administrative moves to restrict citizenship documentation for U.S.-born children.