My new best friend Bonnie Russell on the pro-E side said they believe there is an instance of voter fraud in Sioux Falls. Read: http://www.amendmente.com

Excerpt:

Breaking Election Day News: Voter Fraud

The sister of an attorney friend of ours went to her Sioux Fall polling place only to be told she already voted. Fortunately, she was allowed to vote after much hassle but then election officials said 'well your brother already voted.'

Brother lives in another state and has for Years. The woman will contact officials tomorrow. Contact us for details.

Bonnie said they were allowed to vote provisional ballots.  Sounds to me like a clerical mistake or someone might have misrepresented themselves.  Doesn't sound like a pattern of behavior.  Though I'm sure the E folks see conspiracy in this.