El-Erian told the London-based newspaper Al-Hayat that the US needs to understand that “what was acceptable before the revolution is no longer,” and that should the aid provisions outlined in the treaty be modified, it could open the door to further changes in the agreement.

A Gallup poll released last week found 71 percent of Egyptians oppose US economic aid to their country, and a similar percentage oppose Washington sending direct aid to civil society groups.

Last month the US administration announced it would speed up aid to Egypt as the country copes with mounting economic problems during the transition from President Hosni Mubarak’s three-decade term in power.