In the last Insiders for 2021, David Speers interviews Treasurer Josh Frydenberg. AFR's Phil Coorey, The Age and Sydney Morning Herald columnist Niki Savva, and James Campbell of the Herald Sun discuss the issues of the week. Mike Bowers talks the year in pictures with Jack The Insider. Huw Parkinson shows us politics can rock. And David unveils the Matt Price moment of 2021.