Aaron Blake: Barr did just what his critics feared he would do. Again.

Video: Attorney General William P. Barr on April 18 discussed the release of the redacted report from special counsel Robert S. Mueller’s investigation. (The Washington Post)
When Attorney General William Barr announced he was going to hold a news conference before the release of the Mueller report Thursday, there was instant pushback. How can the media ask questions about a report it hasn’t seen? Would this just be a whole bunch of pre-spin from a man already accused of being too fr