In a sharp rebuke to President Trump, the Supreme Court ruled Tuesday that the Constitution guarantees automatic birthright citizenship to virtually all children born in the United States. Chief Justice John Roberts wrote the court’s 6-3 opinion, and the decision firmly rejected the executive order that Trump issued on the first day of his second term.
What changed
The Supreme Court ruled that the Constitution guarantees automatic birthright citizenship to virtually all children born in the United States. Trump’s order sought to bar citizenship for babies born in the U.S. to parents who either entered the country illegally or who are living and working here legally with temporary visas.
The justices interpreted the words “subject to the jurisdiction thereof” in the 14th Amendment to mean that all children born in the U.S. were automatically granted citizenship — with three limited exceptions, only one of which exists today — for the children of foreign diplomats. Chief Justice Roberts’ opinion pointed to the court’s landmark 1898 ruling in Wong Kim Ark.
Dissenting from Tuesday’s decision were Justices Clarence Thomas, Neil Gorsuch and Samuel Alito. Justice Brett Kavanaugh suggested that Congress could hold statutory power under the Constitution to limit birthright citizenship, despite his ultimate decision to rule with the majority that the president’s executive order was illegal.
Why it matters
For immigration practitioners, this decision reaffirms the settled law that any child born on U.S. soil—regardless of parental immigration status—is an automatic U.S. citizen at birth. You can advise clients with confidence that anyone born in the country, with very limited exceptions, is a citizen.
The ruling eliminates uncertainty that had hung over the landscape since Trump’s January 2025 executive order. The executive order never went into effect because every lower court judge who reviewed it concluded, in the words of one judge, that it was “blatantly unconstitutional.” The Supreme Court’s 6-3 majority now makes clear that argument is foreclosed.
This affects your work in several ways:
- Clients asking about children born in the U.S. to undocumented parents can be assured those children are citizens.
- Birth certificates alone remain valid proof of citizenship (the Trump order would have ended that).
- You need not factor in parental status—legal permanent resident, visa holder, or undocumented—when advising on a client’s child’s citizenship.
Way forward
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Confirm citizenship status with clients. When taking on a case, ask whether the client was born in the U.S. If yes, they are a citizen (barring the rare diplomat exception). A birth certificate is sufficient proof.
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Update your client advisories. If you provided guidance during the litigation period, reissue updated materials reflecting the settled law.
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Anticipate statutory pushback. House Speaker Mike Johnson told reporters on Tuesday after the decision that Congress will deal with the idea of birthright citizenship. Senate Republicans who supported Trump’s executive order ending birthright citizenship now appear to be in agreement that they would need to pass a constitutional amendment to change it after today’s ruling. Monitor legislative developments, though a constitutional amendment faces a very high bar.
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Distinguish from naturalization. Ensure clients understand that U.S.-born citizens do not need to naturalize; only immigrants who were not born in the U.S. need to pursue N-400 naturalization.
Disclaimer
This article is not legal advice. Fola is not a law firm. Consult a licensed immigration attorney for advice about your specific situation. This article describes U.S. immigration policy as publicly announced by the Supreme Court on the date shown. Policy can change without notice, and you should verify all claims against the primary source materials linked above and the full text of Trump v. Barbara, 609 U.S. ___ (2026), available at supremecourt.gov.