I guess a write in for Brett Favre for President of the United States was challenged by the Franken campaign as a ballot that should be thrown out. Same with one who voted for the "Lizard People."
Either way, I just think its hilarious, because you know that guy was watching TV and was like, "Maw! Paw! Mah vote is on the picture box! I tol' yuu that Favre will be the white house guy!"