Complex sentence: Mount had been active in community work, through organizations such as the Junior League of Lake Charles, and ran for mayor of Lake Charles in 1993, winning against Paul Savoie, a Democrat and a former mayor.
Split into simpler sentences: Mount had been active in community work through organizations such as the Junior League of Lake Charles, and ran for mayor of Lake Charles in 1993. She defeated Paul Savoie, a Democrat and a former mayor.