So the investigation by Special Counsel into misconduct by the President and his pre-election campaign is (somehow) "advice to the president subject to executive privilege", but it’s fine for the AG to publicize whatever information he thinks implies the investigation was somehow influenced by bias without running it by the President first?
It should not need to be said explicitly, if AG Barr were acting in good faith and with a pure heart (I do not believe either of those things are true, but if), he would lack the underlying knowledge and expertise to know why, e.g., the CIA classified, and what damage might be done by declassifying. Because DOJ people, even the best DOJ person ever, has very limited familiarity with the equities of international intelligence gathering. That's not really what they do. This empowerment is absolutely indefensible by any metric. It is maliciously idiotic.
We already know what happened in this circumstance. Trump and people close to Trump met with some Russians who were being routinely surveilled by the FBI. There was no targeting of Trump's campaign. And a lot of career FBI men didn't appreciate Trump strutting into the FBI office fishing for "loyalty", wanting the first job in the new Trump administration to be having Comey "investigate", er um, I mean "squash" any rumors of a pee tape so Melania would feel better. Lets face it, 99% of everyone who meets Trump for the first time and , or Trump tries to bully into lawbreaking and first impressions into the general sense of the man is - "wow, this guy is an asshole who wants me to break the law"