The U.S. Supreme Court case Federal Communications Commission v. Columbia Broadcasting System of California, Inc., in 1940 revolved around the issue of whether the Federal Communications Commission (FCC) had the authority to regulate network broadcasting contracts under its mandate to ensure "public convenience, interest or necessity." The FCC sought to prevent networks from imposing certain contractual restrictions on affiliated stations, arguing that these were detrimental to local programming and thus against public interest. CBS challenged this action as an overreach by the FCC into areas not within its jurisdiction. The Supreme Court ruled in favor of the FCC, affirming that it did have such regulatory power under its broad mandate from Congress. This decision underscored both the breadth of powers granted by Congress to administrative agencies like FCC and their ability to intervene directly in business practices when deemed necessary for protecting public interests.

In the dissenting opinion for the Federal Communications Commission v. Columbia Broadcasting System of California, Inc., it was argued that the FCC had overstepped its authority by attempting to regulate network broadcasting contracts. The dissenters believed that Congress did not intend for such regulatory power when creating the Communications Act of 1934 and thus, this interpretation was a violation of legislative intent. They also expressed concern about potential First Amendment violations as they saw this regulation as an intrusion on freedom of speech and press rights held by broadcasters. Furthermore, they disagreed with majority's view on "public interest" arguing that public interest should be determined through market competition rather than government intervention or control.