Looks like it would have been my 4th or 5th terms:
X - X - O - O - O - O - O |
O - O - O - O - O - O - O |
In his 4th term, he would have been a supervisor and could have easily been involved in arranging the mission. However, since it was a failure, it likely wouldn't have been one that Hortensius was involved with (since he was promoted from Supervisor to Manager in that term, a failure wouldn't have sat well).
However, in his 5th term, he was a manager that got some heat from a defendant because he believed he besmirched his honor and challenged him to a duel. During that term, I could easily see Hortensius navigating courtrooms and such and finding a case file booting a talented person from the scouts. In his capacity as an administrative manager, he reached out to some counterparts in the Navy and ensured that the record of the faulty scout mission was misplaced, ensuring that you got a spot on that successful diplo mission.