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VIDEO: Michelle Grattan on the government reneging on a clean energy target

Michelle Grattan and The University of Canberra’s acting vice-chancellor, Frances Shannon, discuss the week in Australian politics. They explore Energy Minister Josh Frydenberg’s suggestion that the government is walking away from a clean energy target, the response to Tony Abbott’s provocative climate-change speech in London, the latest on the same-sex marriage postal ballot, and the High Court hearing on the dual-citizenship status of seven MPs.