Amendment 17

May 13, 1912

Amendment 17

Before the 17th Amendment, US Senators were chosen by state legislatures. On May 13, 1912, Congress passed a Constitutional Amendment that allowed for the direct election of US Senators by the people. The Amendment was ratified by the states less than a year later.

http://americanhistory.about.com/od/usconstitution/a/17th-Amendment.htm