What was an action by congress that sought to tame business excesses?

One significant action by Congress to address business excesses was the passage of the Sherman Antitrust Act in 1890. This landmark legislation aimed to combat monopolies and promote fair competition by making it illegal to restrain trade or commerce through anti-competitive practices. The Act laid the groundwork for subsequent antitrust laws and enforcement actions, reflecting a growing concern over the power of large corporations and their impact on consumers and the economy.