Two federal judges on the U.S. Sentencing Commission said Thursday that Attorney General Eric Holder stepped “outside the legal system” and exceeded the authority of the executive branch by sending “improper instruction” to federal prosecutors to reduce drug sentences before they were officially approved by either the commission or Congress. “I have been surprised at the attorney general’s steps taken to proceed with this reduction outside of the legal system set up and established by the Sentencing Reform Act of 1984,” Judge Ricardo Hinojosa, the commission’s vice chair, said during a public hearing in the Thurgood Marshall Federal Judiciary Building...