Final answer:
The initiative, referendum, and recall elections were supported by the Progressives as ways to increase citizen participation in the political process.
Step-by-step explanation:
The initiative, referendum, and recall elections were supported by the Progressives as ways to increase citizen participation in the political process. The initiative allowed citizens to propose new laws, the referendum allowed citizens to approve or reject existing laws, and the recall allowed citizens to remove elected officials from office. These reforms aimed to give more power to the people and make the political system more democratic.