Iranian Supreme Leader Ali Khamenei appears to offer contingent support for the Iranian government to negotiate with the United States. His tweet states “Behind the smiles of diplomacy, there are always hidden and inner enmities and grudges of the evil one. Let us open our eyes and be careful with whom we are facing, dealing with, and talking. When a person knows his opponent, he may make a deal, but he knows what to do. We must recognize and know.”