On AM: The Opposition leader, Bill Shorten, has announced another $71 billion in savings, in a budget reply speech designed to kick start Labor's election campaign; Queensland's Liberal National Party is preparing for a leadership showdown today, in a move designed to end the distraction of leadership speculation before the federal election is called; and, tensions are rising in Papua New Guinea over a long-running corruption case involving the Prime Minister and senior government officials. This is an early edition of AM. The complete 30 minute edition will be available for download at 9am.