President Trump's executive order attempting to end birthright citizenship for children of undocumented immigrants faces a constitutional challenge before the Supreme Court. The administration claims the president can override established law with a single pen stroke, a position legal scholars find weak when compared to 150 years of constitutional interpretation and precedent.

Chief Justice John Roberts delivered a telling rebuke during oral arguments, stating "it's a new world, but it's the same constitution" in response to administration concerns about global population mobility. The 14th Amendment and 1898 Supreme Court decision in United States v. Wong Kim Ark form the bedrock of birthright citizenship, with most justices appearing skeptical of the administration's revisionist legal theory.

Trump's personal attendance at the argument signals his strategy to politicize the judiciary, following his pattern of denigrating justices who rule against him. The case represents a broader effort to reshape America as a blood-and-soil nation, with Stephen Miller suggesting Texas challenge Plyler v. Doe by withholding education funding from undocumented children.