In the early 1900s, a new generation of crusading writers and journalists captured the nation’s attention by digging up dirt on big business and government and advocating for change. They became known as “muckrakers.” Ida Tarbell exposed the ruthless machinations of John D. Rockefeller, the tycoon who built Standard Oil. Lincoln Steffens exposed bribery in city governments across America. And Upton Sinclair chronicled the horrific conditions in Chicago’s meat packing plants and slaughterhouses. But in galvanizing public support for progressive reform, they also clashed with President Theodore Roosevelt, who was fighting his own battles with conservatives in Congress.

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