"Poroshenko frequently speaks with prominent Western politicians and he must reckon with what they are saying. But I know about the West advising Poroshenko on some issues and his being unwilling to follows the advice," Herbst said without elaborating.
His remarks came a week after Poroshenko and US Vice President Joe Biden discussed the need to continue government reforms in Ukraine, including issues related to Kiev's further cooperation with the International Monetary Fund (IMF), according to Poroshenko's press service.
Earlier, Lagarde warned that Kiev risks returning to a pattern of failed economic policies characterized by slow progress in fighting corruption; and that this could jeopardize the four-year 17.5-billion-dollar assistance package.
Kiev has already received two payments under the economic support program. On January 21, Poroshenko announced that his country expected to receive the next tranche from the IMF before the end of February.
