It's because he's using Barr as his personal service and not the nation's. Flying his cabinet members all over the world to look at fake corruption on his political rival (nobody ever asks why he doesn't look into Ivanka and Jareds corruption or any other corruption). His entire term so far has been just trying to get reelected. He just keeps saying the same things over and over hoping you people believe him (and you all do like sick puppies). He tweets about 100 times a day.

He has no time to deliver anything when he's too busy doing stupid shit.