In the 66 Indiana counties that reported data, voters in 2012 cast 4,801 provisional ballots, of which 3,997—or 83 percent—were rejected. Of the rejected ballots, nearly 1 in 3 was rejected because the ballot was cast in the wrong jurisdiction, the most common reason statewide. Another 11 percent were disallowed because the voter failed to provide sufficient identification.
In 2012, Indiana was one of four states that required voters to present photo identification before casting a ballot. Under state law, voters who cannot provide appropriate ID must cast a provisional ballot and then provide documentation within 10 days in order for the ballot to be counted.