The US Court of Appeals in Chicago has "elected" to uphold Indiana’s voter ID law, albeit in a split decision.

The law that requires voters to show a photo ID at the polls was challenged as an undue burden on the right to vote.

While the court writes that the law can be improved, the justices ruled that the regulation to show a photo ID was reasonable.

One judge disagreed, writing in dissent, the law was called a thinly veiled attempt to discourage Election Day turnout.

The justice pointed out that voter fraud is already a crime and that no one in Indiana had ever been charged with that crime.