Earlier quoted context omitted.
As someone who is on the liberal side on incarceration issues: what does arguing in favor of higher incarceration rights have to do with being a “hatchet man” for the President? Especially when the President in question has made strides in reducing mass incarceration that even Vox had to admit were extremely significant: https://www.vox.com/future-perfect/2018/12/18/18140973/state... (
Bush senior was big on incarceration and the war on drugs was a central tenant of his platform. It's pointing out that he [Barr] has a long history of doing what the President wants for political purposes.
Likewise for your point that Barr endorses a theory a unitary executive. So do many people. What does that prove? It’s not a controversial idea. The very first sentence of Article II of the United States Constitution says: “The executive Power shall be vested in a President of the United States of America.” It doesn’t even say something like “there shall be an executive branch and the President shall be in charge of it.” It vests the executive Power (capitalization in original) in a single person. Article I and Article III, by contrast, “vest” the legislative and judicial powers in institutions (Congress, and the Supreme Court). The choice of phrasing appears pretty deliberate. And notably absent from Article II is any mention of career bureaucrats who can exercise the executive Power" of the United States independently of the person in whom that Power is vested.