The recount underway in Pennsylvania's U.S. Senate race marks the end of a chaotic post-election period that has become the latest example of how disputed election rules can expose weak points in a core function of American democracy.
The ballot-counting process in the race between incumbent Democratic Sen. Bob Casey and Republican David McCormick has become a spectacle of hours-long election board meetings, social media outrage, lawsuits and accusations that some county officials are openly flouting the law.
The Associated Press called the race for McCormick on Nov. 7, concluding that not enough ballots remained to be counted in areas Casey was winning for him to take the lead.
As the race headed toward a recount, which must be concluded by next Tuesday, Republicans have been claiming that Democrats are trying to steal McCormick's seat by counting "illegal votes." Casey's campaign has said Republicans are trying to block enough votes to prevent him from pulling ahead and winning.
A big part of the dispute has centered around the date requirement on the return envelope that contains a mail-in ballot.
