I believe that the name of this particular form of logical fallacy is the ad populem argument, a form of appealing to a false authority.
Here is the opening paragraph of the article, of which apparently he is quite proud, since he has posted his smiling face beside it:
Doggedly refusing to consider the Republican race settled, Alan Keyes told Oklahomans that Texas Gov. George W. Bush can't win the presidency because he lacks the skills to expose the ``great moral betrayal'' of the Clinton administration. Ending a two-day campaign stop in the state Friday, Keyes stuck mainly to religious and philosophical themes as he decried a society he said is more dependent on government than God.
This is from his OWN WEB SITE. His comments were not helpful to the campaign, and were, indeed, petty.