By Jason Meisner and Ray Long, includes “… The filing marked the latest in a legal tussle that has had a familiar ring in Chicago, where attorneys representing accused politicians have long argued that the U.S. attorney’s office is using the bribery statute to criminalize legal political logrolling. The 2013 law allowed ComEd to use a series of accounting techniques the ICC rejected, a move that would help the utility’s bottom line. The Public Interest Research Group, known as PIRG, has estimated the 2013 law cost electricity users $600 million over the past seven years — a figure ComEd disputes.”