Having presumably worked his way up the
cursus honorum, achieving the pre-requisite offices of
quaestor and
praetor at an earlier date, in 66 BC Sulla stood for election to the consulship (to assume office in 65 BC). Sulla was elected
consul by the unanimous vote of all the
centuries, with
Publius Autronius as his colleague. However, the two were not to enjoy their success for long as, soon after the result had been declared,
Lucius Manlius Torquatus and
Lucius Aurelius Cotta, who had both stood against Sulla in the election and lost, accused those who had defeated them of bribery. Impeached on this charge, Sulla and Autronius were tried, convicted and, under the
Lex Acilia Calpurnia, deprived of their office and expelled from the Senate. A second round of elections were held in which Torquatus and Cotta were successful, replacing those they had removed as the consuls-designate for 65 BC. It was now that the so-called
First Catilinarian Conspiracy was allegedly hatched. It is alleged by the Roman historian
Sallust that Catiline, a friend of both Sulla and Autronius, attempted to stand in the second round of elections against Torquatus and Cotta but was prevented in doing so because he had only recently emerged from a trial for extortion and, although he had been acquitted, was not permitted to stand for any office until three weeks had elapsed. This was the second time Catiline had been denied his chance at the consulship, and, incensed, he formed a conspiracy along with the deposed Sulla and Autronius, as well as Gnaeus Piso, against Cotta and Torquatus. The plan was apparently no less than to murder the two new Consuls-Elect on the very day they were to assume office, 1 January 65 BC, and to seize the government and Consulship for themselves. The preparations of the conspirators were however detected and they first postponed their planned coup to February, before abandoning it altogether; the conspiracy therefore coming to naught. There is much doubt as to whether the
First Catilinarian Conspiracy ever took place at all, and that it was instead later invented to blacken Catiline further following the
Second Catilinarian Conspiracy. An alternative view is that Catiline himself was not involved, but Sulla and Autronius on their own plotted the assassination of their rivals. In any case, no attempt was made on the lives of Cotta or Torquatus and the two assumed the consulship without incident. ==Implication in the Second Catilinarian conspiracy==