Wasn’t Jim Kalstrom part of that cover-up.
He was sort of a left-handed acquaintance of El Rushbo, who swore that Jim would never participate in a cover-up, but when the POTUS gives you an order, and you want to keep your gig..........
If he had irrefutable evidence and information of a cover, he would have had a brand new gig, way beyond his job and retirement with the government. Didn’t he retire right after the investigation?