In 337 BC, Sulpicius was elected to his first consulship with
Publius Aelius Paetus as his
plebeian colleague. In this year, it came to the attention of the Senate that the
Sidicini were attacking a Roman-aligned group, the
Aurunci. Upon the Senate's orders, the consuls prepared for war against the Sidicini. However, once news arrived that the Aurunci were forced by the Sidicini to abandon their towns for
Suessa, the Senate grew angry at the consuls for their delay in combating this enemy and ordered them to appoint a dictator. The consuls nominated
Gaius Claudius Crassus as dictator. However, soon after his appointment, it was reported by the
augurs that the
auspices taken for his appointment were flawed, and he was forced to resign. In the remainder of the year two notable events occurred. Firstly, a
Vestal virgin was put to death for her immorality, and secondly, a plebeian was elected to the position of
Praetor. As he was a patrician, Sulpicius opposed the election of a plebeian into a position previously solely held by patricians. The senate, however, were unwilling to try to prevent a plebeian from entering the more minor position of a Praetor when they had already tried and failed to restrict the plebeians from achieving the higher honor of the consulate, and thus affirmed the election. In 323 BC, Sulpicius served a second term as consul alongside
Quintus Aulius Cerretanus. In this year, the
Second Samnite War continued and Rome was also attacked by the
Apulians, with the senate assigning Sulpicius to the former campaign and Aulius to the latter. Sulpicius marched his army into
Samnite territory and ravaged it, but did not encounter the Samnite army. Aulius met the same situation in Apulia, and thus there was no great victory that year. ==Third consulship==