“Section 1. All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.”
This was a case in which the Supreme Court of the United States struck down a state statute denying funding for education to children who were illegal immigrants. It established that regardless of legal status, illegal immigrants are still “persons” and thus protected as such under some provisions the Fifth and Fourteenth Amendments of the US Constitution, notably the Equal Protection Clause of the Fourteenth Amendment.