- 2022- Member, Foreign Affairs and Unification Committee
- 2022- Chief Executive Member, Korea-Japan Parliamentarians’
- 2022.3-2022.6 Chairperson, Emergency Committee of the Democratic Party of Korea
- 2021.7-2022.3 Chairman of the House Steering Committee
- 2021.4-2022.3 Floor Leader, the Democratic Party of Korea
- 2020.6-2021.7 Chairman of the Legislation and Judiciary Committee
- 2018-2020 Secretary General, the Democratic Party of Korea
- 2017-2017 Chairman of Subcommittee on Planning, State Affairs Planning Advisory Committee for President
Moon Jae In
- 2016-2017 Chairman of the Policy Committee, Democratic Party of Korea
- 1999-2000 Administrator, Office of the President Kim Dae Jung