Final answer:
The main way the amendment addressed issues in the Progressive Era was by expanding democracy and enacting legislative and constitutional changes. Progressives pushed for direct democracy reforms and the passage of amendments to the U.S. Constitution.
Step-by-step explanation:
The main way the amendment addressed issues in the Progressive Era was by expanding democracy and enacting legislative and constitutional changes at the state, local, and national levels. Progressives believed that Americans needed more control over their government in order to address the needs of its citizens, so they pushed for direct democracy reforms. They also lobbied for the passage of amendments to the U.S. Constitution, such as the Seventeenth Amendment, which mandated the direct election of U.S. senators.