The real problem

The real problem isn't one of individuals like Bush, DeLay or yes Biden and Lieberman. Although I think he's talking about Australia, Big Gav's explanation applies in the US as well:

Moving on from the problem of the media (which can hopefully be cured by the surge in distributed news and entertainment content generation), the other problem is the political system. None of the major parties are remotely appealing these days (just ask anyone under the age of 30) - socialism is dead, liberalism is under siege (and doesn't have a party of its own) and conservatism has degenerated into a cesspool of fascism and religious fundamentalism.

Check out the rest of the post too.