Preet Bharara, the former U.S. Attorney for the Southern District of New York, discusses his immigrant roots, his love of Bruce Springsteen and his foray into the world of media with the podcast “Stay Tuned with Preet.” He also reflects on his firing by President Trump, his expectations for the Mueller report and talks about his time prosecuting New York politicians, which he has chronicled in his new book, “Doing Justice: A Prosecutor's Thoughts on Crime, Punishment, and the Rule of Law.”