Why did Major Callahan insist on Lommerts to resign?


In the latest episode of the Cotainment (the one that was released on June 28, 2016) there was a scene where Major Callahan told Lommerts to resign. I know he suggested this to her because she did something bad. But what was it specifically? I lost track of everything they were finding about what she was doing in the past few episodes. Was it also that was she doing a bad thing, for a good reason? Or was she doing it to just cover up whatever it was that she did wrong?