STOP
1. Barr specifically lobbied for AG position by writing a letter to Trump all about how he could not possibly commit Obstruction of Justice if he obstructed by using on-it's-face normal powers.
According to this crazy ******* theory of presidency, Trump could pocket money from someone (legal) interested in firing an FBI director, and fire FBI director (legal). To all of sane world that is a crime called bribery. But to Barr that is a nothing-to-see-here since you have to infer President's corrupt intent.
2. BUT WAIT THERE IS MORE. Barr did not simply present Mueller point of view and then offered his disgreement, Barr MISREPRESENTED Mueller's position that it was up to Congress (NOT AG!!!) to hold Trump accountable for the obstructive episodes report documents.
If you read his 4 page summary you come away with an impression that Mueller could not come to prosecuratorial descision, when in reality his position was that he CAN'T make a negative prosecutorial descision about a sitting POTUS.
Mueller himself wrote a letter of concern to Barr over this.
3. Barr's last testimony full of evasive manuevering and deciet made it perfectly clear to anyone who was not yet convinced that Barr is not there to serve the country as much as he was there to Roy Cohn for Trump.