Complex sentence: Prior to seeking elected office, he had a career in law enforcement in Lubbock, Grapevine, and San Marcos, Texas, and served as an instructor of criminal justice and political science at Wayland Baptist University's Lubbock campus.
Split into simpler sentences: Prior to seeking elected office, he had a career in law enforcement in Lubbock, Grapevine, and San Marcos, Texas. He has served as an instructor of criminal justice and political science at Wayland Baptist University's Lubbock campus.