Seventeenth Amendment to the United States Constitution
Joint resolution 39 was passed by the House of Representatives in 1911 proposing a constitutional amendment to directly elect US Senators. The Senate accepted the resolution but since it included a change, it went back to the House. The amended Joint resolution was sent to the states for ratification a year later. The required three-quarters of the states ratified the amendment and the Seventeenth Amendment became official on April 8, 1913.