Barr sees the writing on the wall and is trying to save himself.
As Atty General he had the laptop for 12 months and refused to do anything, and then said nothing when the CIA officials said it was Russian disinformation.
That was his time to be a hero and he failed, deliberately.
He then complained about the CIA liars after the election, which was another false flag of indignation. Sort of like a pimp complaining about venereal disease in the world and someone should do something about it.
He seems a sneaky opportunist with no courage. He is the Rod Steiger character from Dr. Zhivago, suck up to whomever is in power.
Barr is establishment Deep State. He just wants power. He is a Trump enemy. Trump got a lot of bad advice when he was president.
Barr has only ever played both sides to HIS advantage