Keith Olbermann pinned the honor on him 8/17 for his remarks about Cindy Sheehan.
But the winner -- oh, it's the irrepressible Rush Limbaugh. On the radio, he said, quote, "Cindy Sheehan is just Bill Burkett. Her story is nothing more than forged documents. There's nothing about it that's real."
I guess she made up that dead-son-in-Iraq business! He also referred to her supporters as "dope-smoking FM types." I guess the painkillers wipe out your memory along with your ethics. Rush Limbaugh, today's worst person in the world!