For months our newspapers have been laying out the operational failures in the federal Department of Home Affairs.  Now, an exclusive investigation conducted by The Age, The Sydney Morning Herald and 60 Minutes can reveal allegations that the man who heads up the Department of Home Affairs tried to use back channels to shape governments and build his own political empire. Today, investigative journalist Nick McKenzie on Michael Pezzullo, and how power and influence really work in the halls of Parliament House in Canberra.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.