quid pro quo relationship(негласное сотрудничество на материальной основе между коррупционером и его клиентом – бенефициаром клептократического режима; e.g., they are accused of having a "quid pro quo" relationship going as far back as 1996. Prosecutors say that in exchange for luxurious vacations and large donations to his campaign coffers, the senator used his power to advocate for various personal and business interests of his 'client' within the government)
