Ariz. Rev. Stat. § 16-344
A. The chairman of the state committee of a political party that is qualified for representation on an official party ballot at the primary election and accorded a column on the general election ballot shall appoint candidates for the office of presidential elector equal to the number of United States senators and representatives in Congress from this state and shall file for each candidate with the secretary of state, not more than ten days after the primary election, by 5:00 p.m. on the last day for filing: