Marius was an indifferent politician. He perceived as well as any one that violence must not go on, but he hesitated to put it down. He knew that the aristocracy feared and hated him. Between them and the people's consul no alliance was possible. He did not care to alienate his friends, and there may have been other difficulties which we do not know, in his way. The army itself was perhaps divided. On the popular side there were two parties: a moderate one, represented by Memmius, who, as tribune, had impeached the senators for the Jugurthine infamies; the other, the advanced radicals, led by Glaucia and Saturninus. Memmius and Glaucia were both candidates for the consulship; and as Memmius was likely to succeed, he was murdered.
Above the tumults of the factions in the Capitol a cry rising into shrillness began to be heard from Italy. Caius Gracchus had wished to extend the Roman franchise to the Italian states, and the suggestion had cost him his popularity and his life. The Italian provinces had furnished their share of the armies which had beaten Jugurtha, and had destroyed the German invaders. They now demanded that they should have the position which Gracchus designed for them: that they should be allowed to legislate for themselves, and no longer lie at the mercy of others, who neither understood their necessities, nor cared for their interests. They had no friends in the city, save a few far-sighted statesmen. Senate and mob had at least one point of agreement, that the spoils of the Empire should be fought for among themselves; and at the first mention of the invasion of their monopoly a law was passed making the very agitation of the subject punishable by death.
The contrast of character between two classes of population, became at once uncomfortably evident. The provincials had been the right arm of the Empire. Rome, a city of rich men with families of slaves, and of a crowd of impoverished freemen without employment to keep them in health and strength, could no longer bring into the field a force which could hold its ground against the gentry and peasants of Samnium. The Senate enlisted Greeks, Numidians, any one whose services they could purchase. They had to encounter soldiers who had been trained and disciplined by Marius, and they were taught, by defeat upon defeat, that they had a worse enemy before them than the Germans. Marius himself had almost withdrawn from public life. He had no heart for the quarrel, and did not care greatly to exert himself. At the bottom, perhaps, he thought that the Italians were in the right. The Senate discovered that they were helpless, and must come to terms if they would escape destruction. They abandoned the original point of difference, and they offered to open the franchise to every Italian state south of the Po, which had not taken arms, or which returned immediately to its allegiance. The war had broken out for a definite cause. When the cause was removed no reason remained for its continuance.