Investigating the reasons for Trump's failure to introduce the Islamic Republic of Iran as a threat to international security

"Why could not Trump succeed in introducing the Islamic Republic of Iran as a threat to international security?" This study seeks to answer the above question by applying the concept of "Macrosecuritisation" proposed by the Copenhagen school and is part of the theory of "securitisation".This study seeks to answer the main question: "What are the reasons for the failure of Trump's Macrosecuritisation Speech act of the Islamic Republic of Iran?" It hypothesizes that Trump's failure to Macrosecuritisation of the Islamic Republic of Iran stems from five factors: 1) the inability to present the Islamic Republic as a macro-threat to the macro security Referent Object. Here, the world community (or at least the Western bloc), and to be more precise, disregards to the external aspect of the facilitating conditions of Securitization, 2) the lack of a unity of negatives as one of the success factors of a Macrosecuritisation 3) Lack of persuasion of the audience and, more precisely, inability to turn ordinary audiences into supportive audiences 4) Lack of adding a universalist dimension to Macrosecuritisation Speech act of the Islamic Republic 5) Lack of selection of appropriate watch words and terms words that can be invoked to move specific issues into the realm of securitisation without elaborate arguments about the securityness of the specific case.