Nearly 100,000 voters who haven't submitted citizenship documents might be prevented from participating in Arizona's state and local elections.

An error in Arizona's voter registration system has put nearly 100,000 voters' eligibility in doubt, prompting concerns from state election officials.

Arizona officials say the flaw could disqualify nearly 100,000 people from voting in non-federal races. At issue is proof of citizenship records required by the state to participate in such elections.

An error that was discovered in the way Arizona verifies citizenship could prevent nearly 100,000 residents from voting in state and local elections this fall.

A large number of residents who have not submitted citizenship documents might be prevented from voting in the battleground state's elections