The 17th Amendment has had some really bad results over the years. I tallied the number of years US Senators served during the 100 years prior to the 17th and the 97 years after the 17th (of the 13 original states) and found that they serve almost exactly twice as long since 1913 than they did before.
Prior to the passage state legislatures could provide that their US Senator was more closely aligned to the political majority of the state, and therefore was actually much more responsive to the state's political consensus and 'current' needs.
Our own state has had Senator Lugar in office since he first ran in 1976.
He accomplished all that I voted for him for; which at the time was promotion of small business. He has voted 80% plus in favor of small business. Lugar hasn't lived in the state for 35 years, and doesn't even hold an address here. He's been claiming the residence he was at when he first ran, but thats been sold and occupied by others now for 35 years.
His opponent in the current race, is keeping that issue alive by challenging LugarÂ’s voting at a precinct in which he has no residence. Exposing that is being called dirty politics. So Lugar's running once again, for a 7th term, and has become a kind of "statesman" of the Senate. That's all fine, for him, but we need a change.
His opponent, Richard Mourdoc took the side of bondholders (bonds held by firemen, police, teachers, state employees), their position as first in line as lien holders, and brought it to trial in their defense. That was an aggressive position to take, and he did it well. The best Lugar can do is argue that Mourdoc missed public meetings on which his office held a pro-forma position 66 percent of the time; but of course Mourdoc sent his assistants or representatives to all those public meetings.
The 17th amendment has proven to protect incumbents in so many ways. It can never be rolled back, and we can never expect Senators to vote against their own incumbency.
The Senate still has an essential purpose; to slow the progress of bad ideas coming out of the house, and to vote as a caucus of the states in instances of “advice and consent” to the president. But now the Senate is made up of little more than super-representatives with all the same demands made on it as house members are subject to, with the only real difference being that their term of 6 years alternating in 3-different classes versus 2 years provides for a slow-down mechanism in times of volatile political change that the house is so subject to.