What impact did the Progressive Era have on presidency

Significant changes enacted at the national levels included the imposition of an income tax with the Sixteenth Amendment, direct election of Senators with the Seventeenth Amendment, Prohibition with the Eighteenth Amendment, election reforms to stop corruption and fraud, and women's suffrage through the Nineteenth Amendment to the U.S. Constitution.

Explanation:

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the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism