Q can't say trust RR or trust Mueller because it would give away the entire plan. Q has all but said to trust both of them. Q said there would be misinformation from past reliable sources (Sara Carter & Gregg Jarrett). Then Q said, "Why did Rosenstein [beg] Paul Ryan not to release the memo?" He didn't really beg. They were instructed to present this fake story to the media so democrats would start supporting Rosenstein.
The reason that Sessions recused himself is because his senate confirmation vote was too close. Rosenstein, on the other hand, only had a few senators vote against him. Both would have appointed Mueller. POTUS isn't under investigation. Q told us that two weeks ago when we were told that a traitor leaked that POTUS was not a criminal target of the Mueller investigation. The Obama administration is under investigation. Mueller & Rosenstein are both our guys.