The invisible mandate of the looming election. I do not see Barr having the political capital to withstand accusations of trying to influence the election for Trump by continuing the investigation past Labor Day to snare a big name. I am sure we might see a low level official indicted on a "process" crime, but that will be it. Durham appears to be an honest broker in the search for justice. The question becomes is Barr simply running cover for the Deep State.
The problem with your position is that it is based on the assumption tha Trump is either fooled or helpless.
He is neither.
Trump and his team don’t give a rat’s a** what the Demsheviks or their propaganda arm aka the “media” equeal.
There’s no evidence Durham is an “honest broker of justice.” He’s hired Democrat prosecutors and steadfastly refused to indict coupists.
The Deep State plan all along was to delay and run the “investigations” deep into election season where they could be plausibly shut down. Mission accomplished on that note.