Q: Why did RR draft a letter supporting JC termination?:
>>To increase suspicion that POTUS was guilty of hiding something (for the Public)<<
I think that is exactly right. It was even made to seem, at the time, like POTUS may have strong-armed RR into firing Comey; further supporting your theory.
The question i have – based on the assumption that DJT had detailed knowledge of the Deep State tactics (from Admiral R, Flynn) and the bad players involved going into inauguration – why did he keep Comey on as Director?? I believe POTUS was too smart not to know what he was getting with JC. Trying to see the 8-D chess move there. I cannot crack that nut…