To be fair, Barr, Wray, the the entire FIB also knew that they had done nothing. And they knew why.
Possibly, because children were involved, the JD sealed information from even the WH? Otherwise, it seems inexplicable for the Justice Department to leave the POTUS shut out of any investigation notice and leave both he and Giuliani convinced and complaining that the Department was doing Nothing. And the people drawing conclusions about who is and is not benefited.
What a mystery we are living through.