Some conservatives are attacking a Supreme Court ruling that allows undocumented children to attend public schools. Conservatives are attacking a longstanding legal precedent that allows undocumented children to attend public schools. The Supreme Court ruled in 1982’s Plyler v. Doe that undocumented immigrants are covered by the 14th Amendment, and that public schools had to let children without legal status attend. The decision has provided generations of children the right to an education.