The Supreme Court struck down President Trump's executive order attempting to end birthright citizenship, delivering a significant legal defeat to his immigration agenda. Chief Justice John Roberts authored the majority opinion, ruling that children born in the United States to undocumented parents remain citizens under the Fourteenth Amendment's Citizenship Clause.

Trump's order, signed January 20, 2025, would have denied citizenship to tens of thousands of babies born monthly to undocumented immigrants. The policy aimed to create a new two-tiered citizenship system, potentially affecting millions of families and creating administrative chaos for state vital records offices and federal agencies tasked with processing citizenship documentation.

Conservative justices split on the decision: Amy Coney Barrett joined the majority, while Samuel Alito, Clarence Thomas, and Neil Gorsuch dissented. Brett Kavanaugh agreed the order was invalid but on statutory rather than constitutional grounds. The ruling preserves a fundamental principle established in 1868.

Trump responded on Truth Social calling the decision 'too bad for our Country' and urging Congress to pass legislation ending birthright citizenship immediately. The ACLU's Cecillia Wang praised the victory, noting plaintiffs had lived under uncertainty while the president sought to dismantle a right Americans have relied on for 150 years.