Barr is in the camp of defending the power of executive branch, i.e. the Article II of constitution, as opposed to those in the camp of limitation of executive power. Putting aside politics, this article made it clear to readers. I think it's very fair.
Philosophically, not politically, conservatives generally tend to support power of executive branch for the sake of accountability” and “effectiveness, liberals tend to support limitation of executive power. They worship California model, i.e. a powerful Assembly/senate and a weak governor. of course when politics comes into play, both side may switch their stands for
convenience to score political points. But it is Barr. he has been consistent in the camp of defending power of executive branch throughout his career.