Since then, critics say, Barr has all but proved their fears. Barr oversaw an administrative-review-turned-criminal inquiry into the origins of the 2016 Russia investigation, an investigation that Trump had been demanding for months. Barr reviewed and decided not to pursue a criminal referral about the president’s campaign finance violations regarding Ukraine, dealings that ultimately led to Trump’s impeachment last year. And Barr summarized the findings of the special counsel inquiry, led by Robert Mueller, in a manner that was favorable to Trump — leaving out details about the instances in which Trump may have obstructed justice.