I would say it would be the education of the American people. That stuff like this should be at the top of just about every news program out there.
What sucks is that most people in America, red and blue, are probably not even aware that this is happening. If more people knew what was going on then maybe things like this would stop because of either people voting these politicians out or causing so much outrage they change their minds.
I think because of the vetting process for supreme court justices, the rest of government just trusted them to hold themselves to a high ethical standard.