EKSISTENSI PUTUSAN MK NOMOR 135/PUU-XXII/2024 DALAM SISTEM PEMILU DI INDONESIANIM.: 21103070061Ikrar Iman BillahauthorConstitutional Court Decision Number 135/PUU-XXII/2024 brought about a major change in the design of Indonesia's electoral system by separating national and regional elections, thus shifting the policy of simultaneous elections stipulated in Constitutional Court Decision Number 14/PUU-XI/2013. This change raises issues related to the consistency of election design, regulatory readiness, and implementation effectiveness, including the question of whether this new policy truly brings benefits and aligns with the principles of constitutional democracy. This study aims to analyze the existence of this decision and assess its compliance with the concept of maṣlaḥah and the values of constitutional democracy. This research employs a library research method with a normative-juridical and descriptive-analytical approach to examine relevant legislation, Constitutional Court decisions, and academic literature in assessing the changes to the electoral system and their alignment with maṣlaḥah and constitutional democracy after Decision 135/PUU-XXII/2024. The theoretical frameworks used maṣlaḥah mursalah and constitutional democracy serve to analyze the policy changes and evaluate the extent to which the decision upholds the principles of public benefit and constitutional values. Data were collected through literature review and document analysis to support the assessment of the decision. The results of this study indicate that the existence of Constitutional Court Decision Number 135/PUU-XXII/2024, from the perspective of maṣlaḥah, reflects an effort to realize public benefit within the electoral system. Meanwhile, from the perspective of constitutional democracy, the decision demonstrates the role of the Constitutional Court in maintaining constitutional supremacy and the rule of law in the implementation of democracy in Indonesia.342 Hukum Tata Negara2026-03-11UIN SUNAN KALIJAGA YOGYAKARTA;FAKULTAS SYARIAH DAN HUKUMThesis