Complex sentence: The State Senate Majority leader at the time owned drive-in theaters and was nearly bankrupted due to DST, as movies could not start until 10:00 p.m. (2200) at the height of summer, well past normal hours for most Arizona residents.
Split into simpler sentences: The State Senate Majority leader at the time owned drive-in movie theaters and was nearly bankrupted by the practice. Movies could not start until 10:00 p.m. (2200) at the height of summer, well past normal hours for most Arizona residents.