A proposed initiative to create an open primary system for statewide, congressional and legislative races would also wipe out the state's only municipal partisan race in Tucson.
If approved, city primaries would allow all registered voters to select among all candidates regardless of political affiliation. Then the top two vote getters would face off in the general election.
State lawmakers voted last year to ban partisan city elections, a move that sponsors conceded would affect only Tucson.
That law, however, was overruled earlier this year by the Arizona Court of Appeals. The judges said the state Constitution gives charter cities like Tucson broad authority over matters that are solely of local concern.
That ruling, however, would be overridden if voters approve the initiative next year, as it would amend the Arizona Constitution.