David Marr joins Laura Tingle in conversation to discuss his new quarterly essay on Bill Shorten – Faction Man Bill Shorten's Path to Power.

David Marr is the nation's leading writer of political biography. His Quarterly Essay profiles of Kevin Rudd and Tony Abbott were national bestsellers. This controversial and brilliant new essay looks at the making of Shorten. It also addresses a key question: how does the union movement for good or ill continue to shape the Labor Party?

May contain some brief coarse language.