Original sentence: When the film deal was announced, Petievich was investigated by a rival for a pending office promotion, and felt that "a lot of resentment against me for making the movie" and "some animosity against me in the Secret Service" existed, exascerbated by the agent in the Los Angeles field office who suddenly resigned a few weeks after initiating the investigation
Edited sentence: When the film deal was announced, Petievich was investigated by a rival for a pending office promotion, and felt that "a lot of resentment against me for making the movie" and "some animosity against me in the Secret Service" existed, exacerbated by the agent in the Los Angeles field office who suddenly resigned a few weeks after initiating the investigation