As the Liberal Party tries to piece itself back together after the chaos of last week, Four Corners brings you an interview with the man hoping to overthrow the entire political class. Steve Bannon put Donald Trump in the White House and rewrote the rules of modern politics along the way. Described as the most dangerous political operative in America, the strategist, renegade Republican and professional provocateur channelled the anger and disappointment of those who felt left behind by globalism to install Donald Trump as president. Now, he's taking his cause to the world in a crusade to "save" western civilisation, as the leader of a global populist-nationalist movement. He calls it a revolution.