The muckrakers were a group of journalists in the United States who investigated and exposed corruption in business and government in the late 19th and early 20th centuries. They were known for their aggressive reporting and their willingness to take on powerful interests. Some of the most famous muckrakers include Ida Tarbell, Lincoln Steffens, and Upton Sinclair.
Here are some examples of muckraking journalism:
* Ida Tarbell's exposé of Standard Oil, which led to the breakup of the company.
* Lincoln Steffens's investigation of municipal corruption, which led to reforms in city government.
* Upton Sinclair's novel The Jungle, which exposed the unsanitary conditions in the meatpacking industry.
These are just a few examples of the many important stories that were exposed by muckrakers. Their work helped to bring about reforms in government and industry, and it also helped to raise awareness of the social problems of the time.