Evaluating the Success of the Progressive Era Reforms

In the early 20th century, the United States underwent significant political, social, and economic changes. These changes were characterized by the Progressive Era reforms aimed at addressing issues such as industrialization, urbanization, and political corruption. Analyze the following documents to evaluate the extent to which the Progressive Era succeeded in addressing these challenges between the years 1890 and 1920.

Consider the authors' perspectives, the historical context of each document, and how they relate to the broader themes of reform, regulation, and the expansion of democracy. Your answer should include references to at least three of the provided documents.