What he seen or didn't see is not known . Just look a Dans face and listen to his shows sometime, he is holding a lot inside and wants justice. He has a very high security clearance and he has held things inside for a very long time hoping the right administration would get in place. Perhaps Dan helped take down the deep state by joining the Trump team just long enough to reveal information to them and now it's time for him to exit to have a normal life or recover what normal life he can. There is a lot to consider but at this time we still don't know.