Answer:
Progressive reformers
Explanation:
The Progressive Era was a period of many reforms in America, the reforms went from social to political reforms. The Progressives believed that America had a series of problems that were caused by industrialization, urbanization, immigration, and political corruption and because of that they decided to lead a series of reforms.
In politics, the progressives created the referendum, the recall and the popular election of Senators, to increase the citizen's participation and reduce corruption.
