There’s a widely held belief among Trump supporters that Attorney General William Barr is a good guys who generally does the right thing. That belief has no basis in his actual record. From Derrick Broze at themindunleashed.com:
In a last minute court filing, U.S. officials demanded a federal judge block the release of files detailing Saudi connections to the 9/11 attacks.

The files are being sought by families of the 9/11 victims who have spent the last two decades attempting to uncover the truth about the attacks. The families filed a lawsuit in federal district court in New York in 2017 as part of their effort to uncover the role of the Saudi government. What is publicly known is that the alleged 9/11 hijackers had a relationship with Saudi government officials. As Pro Public reported, at the 2019 White House September 11 memorial, U.S. President Donald Trump promised the families he would help them uncover the truth about 9/11. He made similar promises while he was campaigning for president.
“He looked us in the eye on 9/11, he shook our hands in the White House and said, ‘I’m going to help you—it’s done’,” Brett Eagleson, a banker whose father was killed in the World Trade Center, told Pro Publica. “I think the 9/11 families have lost all hope that the president is going to step up and do the right thing. He’s too beholden to the Saudis.”
The Trump Administration stated that the national security threat was so great that even sharing the reasoning behind the request for secrecy could cause harm. According to Pro Publica, AG Barr told the court that public discussion of the issue “would reveal information that could cause the very harms my assertion of the state secrets privilege is intended to prevent.”