As a minister of the MoIS, he is responsible for regional development, administrative innovation and public safety.

[3] On 9 February 2023, he was impeached by the National Assembly, where opposition party was overwhelmingly in the majority, regarding the disaster, and was succeeded by his deputy Han Chang-seob in an acting capacity.

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.

[6] The martial law was later revoked by the National Assembly, but the decision sparked significant political backlash.

On December 7, 2024, the Democratic Party of Korea filed an impeachment motion against Lee, accusing him of mishandling the martial law situation.