Katharine Murphy talks to David Speers, the political editor at Sky News, about his new book, On Mutiny, which delves into the Liberal party’s leadership turmoil. What long-held grudges caused the spill? How did Scott Morrison’s approach overthrow Peter Dutton? Will shortsightedness and cynicism cause it to happen again? Together they discuss the challenges of live reporting on unfolding political chaos and the dire need for quality journalism in a disrupted landscape