Voluntary school prayer in the public schools was ruled unconstitutional in A. Escobedo v. Illinois (1964). B. Engel v. Vitale (1962). C. Buckley v. Valeo (1976).Buckley v. Valeo (1976) D. Gitlow v. New York (1925).Gitlow v. New York (1925) E. Roth v. United States (1957).