He doesn’t “know” anything at all and neither is he correct.
It is simply too perfect. Sessions was able to separate himself from the investigation, giving Muller free reign to lead a corrupt investigation which would drain the swamp of many key players in the FBI and DOJ. Sessions’ recusal insulated him from the politics of the investigation, which only gave the investigation more authenticity.
Brilliant, we have a genius in command of our nation!
And you know this how?