UC Davis Law professor Vikram David Amar and Illinois Law professor Jason Mazzone discuss the scope and original intent of the Fourteenth Amendment’s Citizenship Clause, particularly in response to a recent executive order issued by President Trump that seeks to limit birthright citizenship. Professors Amar and Mazzone argue that the executive order (and the few legal scholars who endorse its legal basis) misinterprets the Constitution by imposing parental status requirements that are not present in the text, and they explain that both historical and legal precedent overwhelmingly support the conventional interpretation that all persons born on U.S. soil and subject to its laws are citizens.