For the court cases Curtis Publishing Co. v. Butts and Katzenbach v. Morgan, which established First Amendment protections, and which allowed Congress law enactment?
Curtis Publishing Co. v. Butts: Curtis Publishing Co. v. Butts, 388 U.S. 130 (1967), was a case in which the Supreme Court of the United States established the standard of First Amendment protection against defamation claims brought by private individuals.
i don't know