Quarterly Journal of Political
Research in Islamic World

Although the Islamic Party of Justice and Development in Turkey has been in power since 2003 but it has always faced challenges from military and some other movements. In order to weaken the opposition and consolidate power and to secure its long-term dominance on the Turkish political scene, the leader of the party, Erdogan, has amended the constitution and changed Turkish political structure from parliamentary to presidential system, which has faced opposition from some political parties and the secular and democratic people in major cities. The opposition accused Erdogan and his party of trying to implement some of the Muslim Brotherhood's Islamic principles and ignore Turkey's secularist and Kemalist principles. In this research, we seek to investigate what factors and motives led Erdogan's government to change Turkey's political structure. In response to this question, the hypothesis raised is that the gap between secularism and religious institutions are so deep that it had now passed through a period of controlled conflict to a threat phase. To avoid these threats, the Erdogan government had to make significant changes to the constitution to consolidate its power. The research method in this paper is descriptive-analytical and based on data collection from library sources and the research is using constructivism theory.