Question: For the court cases Curtis Publishing Co. v. Butts and Katzenbach v. Morgan, which established First Amendment protections, and which allowed Congress law enactment?
{'answer': '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', 'supporting_facts': [['Curtis Publishing Co. v. Butts', 0], ['Katzenbach v. Morgan', 0]]}