At some it must cross William Barr’s mind that Trump is hiding something about Russia, and it’s going to himself no favors by steeping in to cover for someone that is a proven ingrate.
I have a hard time wondering why would Barr come out of retirement to cover Trump’s tail. He would not be doing neither the GOP nor the Conservative movement any favors, not to mention the country.
It occurs to me that Barr might be faking it, signaling that he is willing to bail Trump, when in reality he intends to bury him once in position. Then he will go down in history as the as the incorruptible AG that brought down a treasonous president protected by a bunch of cowards in the senate. That would be something worth coming out of retirement for, like Mueller.