On August 30, a Superior Court Judge in Phoenix will hear two cases on whether the top-two open primary has enough valid signatures to be on the ballot. One case was filed against election officials by proponents of the initiative. The other case was filed against election officials by opponents. The first case says the petition really has more valid signatures than election officials found. The second case says that election officials should not have counted petitions circulated by ex-felons. See this story.
The case filed by proponents is Open Government Committee v Bennett, cv2012-013089. The case filed by opponents is Save Our Vote v Bennett, cv2012-013094. They are both before Judge John Raya.