Complex sentence: While at CUA he began his career on Capitol Hill as a Senate parking lot attendant; one of his co-workers there was an intern for Representative Andy Ireland of Florida, and through him, Gillepsie got the same job after he graduated from college.
Split into simpler sentences: While at CUA he began his career on Capitol Hill as a Senate parking lot attendant. One of his co-workers there was an intern for Representative Andy Ireland of Florida, and through him, Gillepsie got the same job after he graduated from college.