Barr could save his arse, when after the election and Trump wins, to come out swinging with the Durham report and some serious charges.
HIs excuse for waiting, didn't want to appear wrapped up in a political process, influence an election, trying to look professional. Trying to be unlike Comey with his antics.
With enough good stuff, he could redeem himself.
Wray, IMO, is another story. Don't think he can explain sitting on exculpatory evidence while the President twisted in the wind during 3 yrs of the impeachment farce. Trump won't forgive that, nor should he.
Barr may or may not survive, Wray, probably not.
DF