Associated Press v. United States (1945)
The Justice Department sued the Associated Press over bylaws that let member newspapers veto new members, blocking rivals like the Chicago Sun from joining. The Supreme Court ruled 5-3 that the rules restrained trade, rejecting AP's argument that press freedom immunized the cooperative.
AP revised its membership rules, letting competitors join without veto.
Established that news organizations can face antitrust liability, though later courts drew lines protecting editorial decisions.
The case shows antitrust can reach news cooperatives, which is central to the DOJ's question here.
