There has been an increasing assertion of the velayat-e-faqih in Iranian politics in recent years. This has led to tensions between them and the presidential office in Iran. Against this backdrop, this article seeks to analyse the constitutional position of the velayat-e-faqih and how it has interacted with other institutions to shape Iranian foreign policy. The article critically analyses the relationship between the velayat-e-faqih and different popularly elected presidents. It concludes that this institution has been able to determine the course of Iranian foreign policy so far and will play an important role in its formulation in the future.