Complex sentence: The candidates for the Republican nomination represented a wide variety of factions within the Republican party, of the candidates Barnett was precieved as more of a moderate, which may have helped with his win in the primary.
Split into simpler sentences: The candidates for the Republican nomination represented a wide variety of factions within the Republican party. Of the candidates, Barnett was precieved as more of a moderate, which may have helped with his win in the primary.