He is a journalist, writer and award-winning correspondent with The Guardian. Between 2007 and 2011 he was based in Russia as the newspaper's Moscow bureau chief. He was deported from the country in the first case of its kind since the Cold War. His latest book Collusion: Secret Meetings, Dirty Money and How Russia Helped Donald Trump Win is a New York Times #1 best-seller, published in November 2017, simultaneously in ten countries. Collusion is a gripping, alarming exposé of Trump’s decades-long relationship with the USSR and Russia. Drawing on exclusive new material, Harding tells the story of former British intelligence officer Christopher Steele and his dossier. Collusion is an astonishing tale of offshore money, sketchy real-estate deals, a Miss Universe Pageant, mobsters, money laundering, hacking and Russian espionage. Collusion is published by Vintage (USA), Guardian Faber (UK) Into Kustannus (Finland), Flammarion (France), Penguin Random House Germany, Nieuw Amsterdam.