Mann-Elkins Act signed

On June 18, 1910, President William Howard Taft signed the Mann-Elkins Act in Washington after Congress approved the measure championed by Representative James R. Mann and Senator Stephen B. Elkins. The law empowered the Interstate Commerce Commission to suspend proposed railroad rate increases, extended federal regulation to telephone, telegraph, and cable companies, and created the Commerce Court to hear appeals in interstate commerce cases. Taft treated the statute as a major extension of federal regulatory authority over transportation and communications.

The act intensified the Progressive Era struggle over whether private corporations that controlled essential services could be left to set rates without stronger federal supervision. Railroad executives and conservative critics argued that aggressive regulation would discourage investment, but reformers insisted that the Interstate Commerce Commission needed real power to block discriminatory pricing and monopoly practices. Congress also used the Mann-Elkins Act to confront the growing importance of national communications networks, recognizing that telegraph and telephone lines had become as politically and economically important as the railroads they often served.

The Commerce Court began operating in 1911 as an immediate institutional consequence of the Mann-Elkins Act, although Congress abolished it in 1913 after criticism that it favored railroad interests. The law's extension of federal oversight to wire communications also helped establish the regulatory path that later culminated in the Communications Act of 1934 and the creation of the Federal Communications Commission.