Press Secretary of the President of Ukraine answered the questions about the possible extradition of Kolomoisky to the United States U.S. sanctions against Ukrainian businessman Ihor Kolomoisky marked the beginning of a big fight against corruption in Ukraine led by President Volodymyr Zelensky, as was stated by the press-secretary of the head of state Yulia Mendel in the interview for Alesa Batsman on her YouTube channel.