The Navajo Nation is seeking a court order to allow tribal members to fix problems with signatures on early ballots in Arizona's general election.
The request in a lawsuit filed this week has the potential to delay the state from certifying ballots next month.
Voters statewide were given more time to address mismatched signatures after Republicans sued the state.
But the Navajo Nation says more than 100 of its members in Apache, Coconino and Navajo counties weren't given an equal opportunity. The tribe cited insufficient early voting sites and lack of Navajo translators among the reasons.
Apache County recorder Edison Wauneka says he disagrees that Navajo voters were disenfranchised.
Coconino County recorder Patty Hansen says she hasn't seen the lawsuit. The Navajo County recorder didn't respond to a message.