WRONG! He's just no longer in the lead position. Get your facts straight.
Correction noted Sarge...
First Ronny Jackson Withdrew His Nomination as VA Director. He Won't Get His Old Job Back Either
I heard Sanders explain this today on the press briefing. She said that when Jackson was nominated, he was moved from being the main doctor to being a department head, because they thought he would get the nomination and wanted to have another doctor in his position when he got it.
But, when he withdrew his nomination, Sanders said that instead of moving him back to his old position and kicking the new doctor back to his old position, they are going to keep him as a department head and the new doctor is going to take over.
But, if there wasn't anything in his past like some claim, he would have been reinstated as Trumps doctor. Since he's not going back to being his doctor, I would be willing to bet there is something in his past that they don't want to have come to light.