What’s the line in the sand for Albanese to rethink the multibillion-dollar Aukus agreement? Why won’t the government implement sanctions on the US and Israel – similar to those imposed on Russia for its invasion of Ukraine? And should the Senate expand to better represent the needs of a growing population, such as in the ACT? Tom McIlroy, Dan Jervis-Bardy, Krishani Dhanji and Josh Butler from Guardian Australia’s politics team in Canberra answer questions from listeners and readers