Complex sentence: According to Moschella, city council had already become a collegial, non-partisan environment by this time; when he joined Zampino's party, he was quoted as saying, They (Parti municipal members) treated us as part of the team.
Split into simpler sentences: According to Moschella, city council had already become a collegial, non-partisan environment by this time. When he joined Zampino's party, he was quoted as saying, They (Parti Municipal members) treated us as part of the team.