The present article seeks to analyze the discourse-political foundations of Donald Trump's remarks about the JCPOA and Ayatollah Ali Khamenei's reaction to his remarks. The critical discourse analysis approach prioritizes the relationship between politics, language, society, power, ideology, and discourse. The research method of this article is descriptive-analytical and based on the Fairclough model. We examine Trump and Khamenei’s statement. The findings of this article show that there is an interrelationship between ideology and language and between the use of language and political and social relations and language. In addition, the formability of political relations, can be a useful tool in shaping power relations and political interactions; Therefore, each country's leaders have tried to use their linguistic and political abilities to express their views. The results show that both leaders in their speeches see the JCPOA as a fragile and flawed agreement between two enemies and not a contract to strengthen the friendship between them.