Again, satirists are the true commentators on any society. From Jonathan Swift to the Onion, we can be thankful for those that see the world in a slightly offbeat way and allow us to see the stupidity of those things we take too seriously.
As many have been quoted when asked about how to be satirical, "you take a machine gun and shoot 360 degrees until something screams, then you shoot that thing again and again."
Please check out this website for 2 minutes of commentary on Bush vs. Kerry to the tune of This Land is Your Land (there are 2 semi-bad words). The site is called Jib Jab. Click on "This Land"