Complex sentence: Cullen was elected to represent Bay Ward in newly amalgamated City of Ottawa in 2000, and was re-elected in 2003 and 2006, defeating high profile right-wing challenger Terry Kilrea.
Split into simpler sentences: Cullen was elected to represent Bay Ward in newly amalgamated City of Ottawa in 2000, and was re-elected in 2003. He was re-elected again in 2006, defeating high profile right-wing challenger Terry Kilrea.