By-election dynamics in Farrah and One Nation rise

Matt Canavan has emerged as the leader of the National party. But, ask Barrie Cassidy and Tony Barry, is he the right person to take on One Nation? And will the upcoming South Australian election be an extinction-level event for the Coalition? They also discuss how it took just two weeks for Australia to become involved in Trump’s war on Iran, and why it may just be the thin edge of wedge Email the Barries: backtobackbarries@theguardian.com