By Parisa Hafezi (Reuters) -For Iran's clerical leaders, engaging with the "Great Satan" to hammer out a nuclear deal and ease crippling sanctions may for once be the lesser of two evils. Though it harbours deep mistrust of the United States,

China, Iran and Russia called for diplomacy over “pressure and threats” and an end to “all illegal unilateral sanctions” following talks on Tehran’s nuclear program Friday in Beijing, Chinese state media said.

China and Russia joined Iran in denouncing US sanctions and backed efforts to restore a landmark nuclear deal with Tehran that President Donald Trump abandoned in his first term and now wants to replace.

As Trump attempts to force Iran's hand into renegotiating a nuclear deal, Iran Supreme Leader Ayatollah Ali Khamenei has rebuffed the U.S.' pressuring tactics. But for the country's clerical leaders,