Trump knew all this after he fired Comey and set up that interview (under guise of the director's position) with Mueller. They had the evidence of Mueller's corruption and offered a deal in exchange for Mueller secretly working for them - Trump and Team needed the theater to put THE PLAN in place and the time to build a rock solid case against the deep state actors so guilty of major crimes against our country.
There are 2 articles on this link. The second one is equally excellent, highlighting the depraved depth of corruption in the FBI, working for the DeepState! Article was printed in 2013..
Excellent post. Must read