Q said if [RR] is dirty then [RM] is dirty.

If we assume that [RM] with us (seems more and more possible)

And it is reported that it was Mccabe's people that leaked that conversation about RR wearing a wire (from Mccabe's notes)

trying to expose RR and force him to quit,

knowing POTUS won't fire him

I say Trumps keeps RR to allow him to keep attracting the rats like Brennen, and the rest of the traitors.

Then resign when the job is done.