trust-busting

United States history

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June 23, 2026

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Trust-busting refers to legal actions or political campaigns aimed at breaking up business trusts, which are combinations of companies that interfere with fair economic competition. The primary legislation used for this purpose in the United States is the Sherman Antitrust Act, enacted in 1890. This act outlaws agreements that restrain trade between states and prohibits attempts to monopolize any part of commerce.1234

Initially, the Sherman Act was not vigorously enforced, and a Supreme Court ruling in 1895 limited its reach by distinguishing between manufacturing and interstate commerce. However, trust-busting gained momentum during the administration of President Theodore Roosevelt. Further legislation, such as the Clayton Antitrust Act, was later passed to strengthen antitrust laws.54

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Theodore Roosevelt
The Square Deal of Theodore Roosevelt
…pursued this policy of “trust-busting” by initiating suits against 43 other major corporations during the next seven years. (See primary source document: Controlling the Trusts.) Early in his term, he also sought the creation of an agency that would have the power to investigate businesses engaged in interstate commerce…
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…pursued this policy of “trust-busting” by initiating suits against 43 other major corporations during the next seven years. (See primary source document: Controlling the Trusts.) Early in his term, he also sought the creation of an agency that would have the power to investigate businesses engaged in interstate commerce…
Read More