Guardian Australia’s political editor, Katharine Murphy, talks to Senator Scott Ryan, the newly elected Senate president, about succeeding Stephen Parry and the importance of both his role and institution of the Senate in Australia’s current political climate. Ryan is asked about concerns the Senate is more about political point-scoring than reaching consensus and explains why he has never seen the upper house as the defender of state’s rights • Scott Ryan on trust, partisanship and why he wasn’t deserting Turnbull’s sinking ship