During the period 2014-2016, the Prosecutor General’s Office of Ukraine was conducting a preliminary investigation into a series of serious crimes committed by the former Minister of Ecology of Ukraine Mykola Zlotchevsky and by the managers of the company "Burisma Holding Limited "(Cyprus), the board of directors of which included, among others, Hunter Biden, son of Joseph Biden, then vice-president of the United States of America.

Owing to my firm position on the above-mentioned cases regarding their prompt and objective investigation, which should have resulted in the arrest and the indictment of the guilty parties, Joseph Biden developed a firmly hostile attitude towards me which led him to express in private conversations with senior Ukrainian officials, as well as in his public speeches, a categorical request for my immediate dismissal from the post of Attorney General of Ukraine in exchange for the sum of US $ 1 billion in as a financial guarantee from the United States for the benefit of Ukraine.