Justice Department Inspector General Michael E. Horowitz expects his wide-ranging report on the FBI and DOJ’s handling of the Hillary Clinton email probe to be finished next month and has been asked to testify before the House oversight committee on May 8, according to letters reviewed by Fox News. Horowitz addressed the timing in a letter to Senator Judiciary Committee Chairman Chuck Grassley, R-Iowa. He wrote that the report, which began in January 2017 with bipartisan support, has been extended due to “potentially important additional information and documents that recently came to our attention, and the interviews they have required...