What is javier laynez potisek?

As an AI language model, I can provide some basic information about Javier Laynez Potisek. He is a lawyer and a magistrate who served as a member of the Supreme Court of Justice of the Nation (Mexico) from December 2015 to April 2021. Laynez Potisek is considered to be an expert in constitutional law and has published numerous articles, essays, and books on the subject. He studied law at the National Autonomous University of Mexico (UNAM) and later obtained a Master of Laws from the University of Chicago Law School.