Exclusive: Sergey Lavrov, Russia's Foreign Minister, on Skripals, Trump 'Kompromat' (compromising material) Claims and Organisation for the Prevention of Chemical Weapons (OPCW)

Exclusive Channel 4 News interview with the Russian Foreign Minister Sergei Lavrov. He accuses Britain of 'extermination of the evidence' in the Skripal poisoning and of 'all kinds of tricks' to change the rules of the OPCW.