Trust-busting refers to the efforts made by progressive politicians and the government to break up monopolies and large corporations that were believed to be abusing their power, stifling competition, and harming consumers. This process often involved enforcing antitrust laws to dismantle trusts—large business entities that used their size and influence to manipulate markets and eliminate competition. Trust-busting became a significant focus during the Progressive Era in the late 19th and early 20th centuries, particularly under the leadership of figures like President Theodore Roosevelt, who sought to regulate big businesses and promote fair competition.
In addition to trust-busting, progressive politicians also worked on various social reforms, including public health initiatives, shelters, prohibition of alcohol, child labor laws, and stricter workplace safety regulations. Each of these efforts aimed to address social injustices and improve the welfare of society as a whole.