The 17th Amendment to the United States Constitution, ratified in 1913, established the direct election of U.S. Senators by popular vote. Prior to this amendment, Senators were chosen by state legislatures, which often led to corruption and political maneuvering. The change aimed to make the Senate more accountable to the public and enhance democratic participation. The amendment allows voters in each state to elect their Senators, ensuring that they represent the interests of the people rather than political elites. This shift was part of the broader Progressive Era reforms, which sought to reduce corruption and increase government transparency.