Second, his comments will renew intrigue over his personal transformation -- from the attorney general who shielded Trump from the full blast of the Mueller report into his 2016 campaign's links with Russia into one of the ex-President's most fervent critics. Whether Barr is being driven by an effort to rehabilitate his reputation as a legal straight shooter, a desire to defend the Justice Department against Trump's attacks or, is simply right on the facts, is open for debate.