Is Trump a Russian asset?

In 2011, Luke Harding was ordered to leave Russia - the first Western journalist to be exiled since the fall of the Soviet Union. As the Guardian's senior correspondent, he continued to watch Russia from afar, covering WikiLeaks, Edward Snowden, and the poisoning of Alexander Litvinenko. But in recent years he crept back closer to Moscow, reporting from the front lines of the war in Ukraine.   His new book, Betrayal, follows the many contours of this conflict and what they tell us about the new age of global power: What kind of control does Russia have over Donald Trump? How did North Korean soldiers end up in Ukraine? Why did a Reform leader undertake work for the Russian state for 40k?   Luke Harding joins Oli Dugmore in this episode of The Exchange, a podcast from the New Statesman.