Brett M. Kavanaugh’s confirmation hearing before the Senate Judiciary Committee, law professor and legal commentator Jonathan Turley said, “had the nutritional value of a Slurpee.”Speaking in Chicago on Friday, Turley maintained that the process for passing judgment on candidates nominated to the U.S. Supreme Court is broken.Nothing of substance is learned in confirmation proceedings, Turley contended.And in Kavanaugh’s case, he continued, the initial hearing and the hearing that followed after …