You're not going to like the answer.
Michael Horowitz is the DOJ IG. He was nominated by Obama. He was the IG who whitewashed Fast and Furious.
I’ve had a feeling for months that Trump Has No one in Any department that is on his/our side. I also feel there is nothing he can do without jepordizing his family. Others on here believe that Sessions, Mueller, Wray and others are all part of 3d chess to bring the guilty to Justice.