A.R.S. § 38-383: Unavailability of governor; appointment of temporary successor

In the event of an attack after which the duly elected governor or his successors designated by the Constitution of Arizona are unavailable to serve due to death or for other reasons, the state legislature in emergency session shall designate a temporary governor who shall serve until such time as conditions permit compliance with constitutional mandates for filling the vacancy. Such designee shall be of the same political party as the duly elected governor and he is authorized to exercise full powers and duties of the office during his temporary appointment.