Article 1 gave state legislatures the power to elect these officials; the 17th amendment overrode that
[DOC] [TLE] The Legislative Branch | whitehouse.gov [PAR] Article I of the U.S. Constitution establishes a Legislative Branch with a House ... 
the power to initiate revenue bills, impeach federal officials, and elect the ... Until 
the ratification of the 17th Amendment in 1913, Senators were chosen by state 
legislatures, ...