Nearly 100,000 voters who haven't submitted citizenship documents might be prevented from participating in Arizona's state and local elections, a significant number for the battleground state where races have been tight.

Officials have pitched the matter to the Arizona Supreme Court and begun to contemplate what next steps might look like for impacted Arizonans.

The state's top two elected Republicans are siding with Democratic Secretary of State Adrian Fontes that nearly 100,000 Arizonans who haven't provided proof of citizenship should be able to vote on all candidates -- at least this year.