This study aims to compare the implementation of the open proportional system election in the 2019 Election compared to the 2024 Election including policy changes and voter trends in the open proportional system and to analyze the Constitutional Court Decision Number 114/PUU-XX/2022, which confirms the use of an open proportional system in the 2024 General Election, affecting youth participation in running as legislative members. The research method used is a juridical-sociological approach, implemented in Klaten Regency, and described descriptively. Primary data (...) were obtained through interviews with the Klaten Regency KPU and several youth who were running as legislative members, while secondary data were obtained through a review of relevant literature, including related books and laws. The results of the study show a significant increase in youth participation as legislative candidates. Factors contributing to this increase include the Constitutional Court Decision Number 114/PUU-XX/2022 itself, the use of social media, and the environment around the youth. (shrink)