In 193 Lepidus served as
curule aedile along with his kinsman
Lucius Aemilius Paullus, during which time the two Aemilii constructed two new porticoes, or arcades, in Rome, one of them being the
Porticus Aemilia. Elected as
Praetor in 192, Lepidus served his term from 191 and into 190 as the governor of
Sicily. Due to the ongoing war between Rome and Antiochus in the East, Lepidus was charged with the defence of the island from attack as well as ensuring that one-fifth of all the corn produced was sent to support the armies campaigning in
Greece. In 190 Lepidus left Sicily early before his term as governor had expired without first asking the permission of the Senate to do so and hastened back to Rome in order to stand in the
consular elections. This, however, counted against him and made him unpopular with the people as he was accused of abandoning his province and responsibilities in order to satisfy personal ambition. Following the vote, only one candidate,
Marcus Fulvius Nobilior, a rival of Lepidus, had achieved the required majority, but that still meant that the other consulship was vacant. However, the following day, Nobilior co-opted the candidate who had come second,
Gnaeus Manlius Vulso, as his colleague and the two assumed the Consulship for 189. Lepidus had polled third out of the four candidates, behind Manlius but ahead of
Marcus Valerius Messalla. This humiliating defeat for the aristocratic
patrician Lepidus, who likely saw the consulship as his birthright, further embittered a hatred that had already existed between him and Nobilior. The following election, held later in 189, Lepidus again stood as a candidate for the consulship. Nobilior, however, returned to Rome to conduct and oversee the elections and he used his position to prevent any votes being cast for Lepidus, his personal enemy. As a result, although this time unfairly, Lepidus once more suffered the humiliation of defeat in the elections and could justly blame Nobilior. Instead, Marcus Valerius Messalla, who the previous year had polled behind Lepidus, and
Gaius Livius Salinator were elected consul. For the third successive time, Lepidus stood as a consular candidate in 188, and this time he was successful and was elected consul with
Gaius Flaminius as his colleague. ==Consulship==