Recognised as a moderate man and a supporter of peaceful compromise, upon his return to Rome, Pansa became the leader of the moderate Caesareans and one of the leading proponents for the return of the Republic, which put him on a collision course with Marcus Antonius, whom Pansa began to oppose by late 44 BC. He had also begun entering into discussions with Octavianus, Julius Caesar’s adopted son, who was also in Campania at the same time as Pansa. Nevertheless, Pansa was not totally hostile to Marcus Antonius, and while he wanted to limit Antonius’s power, he did not want to destroy him totally, nor was he willing to embrace the anti-Caesarean faction in the Senate and begin a new round of civil wars. Added to this was the fact that Pansa was married to Fufia, the daughter of Quintus Fufius Calenus, who was a key supporter of Antonius.