Felix Frankfurter,
Parker v. Los Angeles County Steiner…
“ The plaintiffs, petitioners here, alleged that on August 26, 1947, the Board of Supervisors of the County of Los Angeles adopted as part of its 'Loyalty Check' program the requirement that all County employees execute a prescribed affidavit. It consisted of four parts, fully set forth in the Appendix. By Part A each employee is required to support the Constitution of the United States, and the Constitution and laws of the State of California ”
