The Establishment and Free Expression of Religion Clauses. Experts discuss school prayer and the Court’s displacement of the Lemon Test with an analysis of history and tradition. Participants. Erwin Chemerinsky, Dean, UC Berkeley Law School; Michael McConnell, Professor, Stanford Law School; Beth Wiggins, Director of Research, Federal Judicial Center. The nation's top legal scholars discuss what federal judges need to know about the U.S. Supreme Court's most impactful decisions.