I met with a Presidential campaign yesterday. They asked me to advise in general on their web site, but when we got into our discussion, I learned they were doing the static html thing. So, I demoed three CMS' to them - Drupal, Typo3, and a fork of Backend my company developed. They were blown away by all of them,. But I steered them to Drupal for speed of setup, flexibility and features. As a matter of fact, if you compare the features to what Howard Dean has on his site, you are basically setup with everything he has.
Having managed campaigns for a living in a previous life, I realized that if a Presidential campaign is this far behind technologically, then there are likely hundreds of candidates running now and next year that will not have a system in place. Additionally, most do not have the budget of this campaign and are unable to hire developers, designers, and writers, but know it is necessary.