 His appointment was controversial from the outset and he was widely considered to be a key obstacle in the fight against corruption, with accusations that he had blocked cases against allies and influential figures.He was dismissed in March 2016 after pressure from the United States, European Union and international financial institutions, as well as Ukrainian anti-corruption campaigners.In 2019, Shokin became involved in efforts to accuse American politician Joe Biden and his son, Hunter, of corrupt activities in Ukraine.