Muckraker

The term muckraker refers to reform-minded journalists who wrote largely for popular magazines, continued a tradition of investigative journalism reporting, and emerged in the United States after 1900 and continued to be influential until World War I, when through a combination of advertising boycotts, dirty tricks and patriotism, the movement, associated with the Progressive Era in the United States, came to an end.

Before World War I, the term "muckraker" was used to refer in a general sense to a writer who investigates and publishes truthful reports to perform an auditing or watchdog function. In contemporary use, the term describes either a journalist who writes in the adversarial or alternative tradition or a non-journalist whose purpose in publication is to advocate reform and change. Investigative journalists view the muckrakers as early influences and a continuation of watchdog journalism.

The term is a reference to a character in John Bunyan's classic Pilgrim's Progress, "the Man with the Muck-rake" that rejected salvation to focus on filth. It became popular after President Theodore Roosevelt referred to the character in a 1906 speech.

Read more about Muckraker:  History, Early 20th Century Muckraking, Impact, Second Half of The 20th Century