What should happen is the 17th Amendment to the Constitution be repealed. Then Senators would be voted for by the State legislatures.
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The Seventeenth Amendment (Amendment XVII) to the United States Constitution passed the Senate on June 12, 1911 and the House of Representatives on May 13, 1912. The states completed ratification on April 8, 1913. The amendment supersedes Article I, Section 3 of the Constitution regarding election of U.S. Senators. It changed such elections from being by each state's legislature to being by the people of each state. It also provided a new contingency provision which enabled a state's governor, if so authorized by that state's legislature, to appoint a Senator in the event of a Senate vacancy, until an election is held to fill the vacancy.