Supreme Court Upholds Birthright Citizenship, Sparking Sharp Dissent from Justice Thomas on Constitutional Intent and Citizenship Value

In a landmark 6-3 decision on June 30, 2026, the U.S. Supreme Court struck down President Donald Trump's executive order attempting to restrict birthright citizenship for children of undocumented immigrants and temporary visitors. Chief Justice John Roberts, writing for the majority joined by Justices Sonia Sotomayor, Elena Kagan, Amy Coney Barrett, and Ketanji Brown Jackson, reaffirmed the Citizenship Clause of the 14th Amendment as interpreted in the 1898 precedent United States v. Wong Kim Ark. The ruling holds that nearly all children born on U.S. soil are citizens at birth, rejecting the administration's argument that such parents are not 'subject to the jurisdiction' of the United States. Justice Brett Kavanaugh concurred in the judgment but noted the order violated a federal statute while leaving broader constitutional questions open. Justice Clarence Thomas authored a 91-page dissenting opinion, joined by Justice Neil Gorsuch, arguing the majority's interpretation 'devalues' American citizenship by extending it beyond the Reconstruction-era intent to secure rights for freed slaves. Thomas contended the 14th Amendment was designed for those with permanent allegiance to the U.S., not 'foreign birth tourists and illegal aliens,' warning it repurposes the amendment for modern political ends unsupported by its text or history. Justice Samuel Alito also dissented. The decision comes amid broader Trump administration efforts to enforce immigration policies, highlighting ongoing tensions between originalist interpretations of the Constitution and expansive readings of birthright citizenship. Lower courts had blocked the order, which aimed to exclude children of those unlawfully or temporarily present. The ruling reinforces long-standing precedent but underscores divisions on immigration enforcement and the scope of the 14th Amendment.