What was the focus of Lincoln steffens investigations?

Lincoln Steffens was a prominent journalist and muckraker known for his investigations into political corruption and social issues in the early 20th century. His focus was primarily on exposing the corrupt practices of city governments and the influence of big business on politics, particularly in urban areas. His seminal work, "The Shame of the Cities," highlighted systemic corruption and aimed to inspire reform efforts by illustrating the connection between political graft and social problems. Steffens' investigations played a significant role in the Progressive Movement, advocating for transparency and accountability in government.