When Edward and Mary Weidenbener went to vote in Indiana’s primary in May, they didn’t realize that state law required them to bring government photo IDs such as a driver’s license or passport.

The husband and wife, both approaching 90 years old, had to use a temporary ballot that would be verified later, even though they knew the people working the polling site that day. Unaware that Indiana law obligated them to follow up with the county election board, the Weidenbeners ultimately had their votes rejected – news to them until informed recently by an Associated Press reporter.

Edward Weidenbener, a World War II veteran who had voted for Mitt Romney in the Republican presidential contest, said he was surprised by the rules and the consequences.