A second dose of Barnaby Joyce

After three fairly noisy years on the backbench, Barnaby Joyce is back on top. He retook control of the National Party, the smaller sibling in the Coalition Government, when he beat the Deputy Prime Minister Michael McCormack in a leadership spill yesterday. So what does Barnaby's return mean for how Australia is run? Today on The Signal it's our second dose of Barnaby. What it means for both climate change policy and the next election? Featured: Patricia Karvelas, Host, ABC News Afternoon Briefing and ABC RN Drive