I’ve been agitating for years for the repeal of the Seventeenth Amendment.
Severing senators from state legislatures, which could monitor and even instruct them, made them more susceptible to influence by nationally organized interest groups based in Washington. Many of those groups, who preferred one-stop shopping in Washington to currying favors in all the state capitals, campaigned for the 17th Amendment. So did urban political machines, which were then organizing an uninformed electorate swollen by immigrants. Alliances between such interests and senators led to a lengthening of the senators’ tenures.
The Framers gave the three political components of the federal government (the House, Senate and presidency) different electors (the people, the state legislatures and the electoral college as originally intended) to reinforce the principle of separation of powers, by which government is checked and balanced.
Would love to trash the Sixteenth as well, but one thing at a time.