As a minister of the MoIS, he was responsible for regional development, administrative innovation and public safety. He was recognized as one of the most powerful people in Yoon Suk Yeol's administration. However, after the 2022
Seoul Halloween crowd crush, he had to offer an official apology to the victims, although the crush had occurred at a private festival place in Itaewon on Halloween. On 9 February 2023, he was impeached by the
National Assembly, where opposition party was overwhelmingly in the majority regarding the disaster. He was succeeded by his deputy
Han Chang-seob in an acting capacity. He would return to office after the
Constitutional Court of Korea rejected his impeachment with a unanimous conclusion on 25 July 2023. The court announced that the crush was not just caused by specific person or sole reason, but was the result of the lack in total capacity of countermeasure in the public sector. As a result, he maintained his position and remained in power for more than 870 days until his resignation. ==2024 martial law association==