The Roman politician had to be the leader of a faction. […] The Optimates stood sorely in need of a leader. […] Carrinas, the son of the Marian leader, became cos. […] Att. 4, 5, 2; 6, 1, 15), clearly of the family of Vettius Scato, a Marsian insurgent leader. […] The leaders were Pompeius and Cato.