(CNSNews.com) – A top Muslim Brotherhood official has warned that any cuts in U.S. aid to Egypt could affect Cairo’s peace treaty with Israel – the latest sign that Egypt’s emerging political forces intend to call Washington’s bluff over the diplomatic dispute triggered by a crackdown on non-governmental organizations.

Egyptian judges have referred 16 Americans and 27 others linked to NGOs for trial, accusing them of using foreign funds to encourage disruptive protests. Among the targeted NGOs whose assets and funds have been seized are the U.S. government-funded International Republican Institute and National Democratic Institute.