I'm with ms4720. We should repeal the 17th Amendment. The short reason is because State governments no longer have representation in the Federal Government. There are other benefits to repealing it as well such as less money and noise spent on Senate elections.
Politicians don't really poll what everyone wants. They poll to see how to boost their numbers for a specific group, such as NRA or unions. They now that certain people will always vote for them.
As was stated by jrs235 it takes the state governments out of the picture at the federal level. This has lead to a much more powerful and invasive federal government for internal matters in America.
To tell the truth I would like to see the 17th Amendment repealed, http://en.wikipedia.org/wiki/Seventeenth_Amendment_to_the_Un...
if there is interest I am willing to write up why, but now I need to make coffee