Complex sentence: Bucci was twice elected mayor of Bridgeport and served out both terms, but lost re-election to Ms. Moran by a margin of 54% vs.40%, with 6% going to minor candidates.
Split into simpler sentences: Bucci was twice elected mayor of Bridgeport and served out both terms. He lost his bid for a third term to Mary Moran by a margin of 54% vs.40%, with 6% going to minor candidates.