Senatorial opposition to these laws eventually led to an internal crisis, the declaration of the senatus consultum ultimum, and the deaths of Saturninus, Glaucia, and their followers in 100 BC.
As quaestor (104 BC), he superintended the imports of grain at Ostia, but was removed by the Roman Senate (an unusual proceeding), and replaced by Marcus Aemilius Scaurus.
He entered into an agreement with Gaius Marius, and in order to gain the favour of his soldiers proposed that each of his veterans should receive an allotment of 100 iugera of land in the Roman province of Africa.
In order to ingratiate himself with the people, who still cherished the memory of the Gracchi, Saturninus took about with him Lucius Equitius, a paid freedman, who made himself out to be the son of Tiberius Sempronius Gracchus.
[citation needed] It was proposed that all the land north of the Padus (Po) lately in possession of the Cimbri, including that of the independent Celtic tribes which had been temporarily occupied by them, should be held available for distribution among the veterans of Marius.
Colonies were to be founded in Sicilia, Achaea, Transalpine Gaul, and Macedonia, which were to be purchased with the Gold of Tolosa, the temple treasures embezzled by Quintus Servilius Caepio.
Marius, finding himself overshadowed by his colleagues and compromised by their excesses, thought seriously of breaking with them, and Saturninus and Glaucia saw that their only hope of safety lay in their retention of office.
Marcus Antonius was elected without opposition; the other candidate, Gaius Memmius, who seemed to have the better chance of success, was beaten to death by the hired agents of Saturninus and Glaucia, while the voting was actually going on.
The Senate met on the following day, declared Saturninus and Glaucia public enemies, and issued the so-called 'final decree' (senatus consultum ultimum) calling upon Marius to defend the State.
[8] The historical novels The First Man in Rome and The Grass Crown, by Colleen McCullough, largely focus on the rise and fall of Gaius Marius and his lengthy career.