In a new paper from the Parliamentary Library, Double Dissolutions: Triggers, Elections and Proposals for Reform, Nicholas Horne, Mark Rodrigues and Chris Lawley provide an overview of: the double dissolution process, including some unsettled issues; ‘triggers’ and legislation in the 42nd Parliament that could potentially constitute a trigger for a double dissolution election; double dissolutions and elections; the possible composition of the Senate following a double dissolution election, and proposals to reform the double dissolution mechanism in section 57.