He was the interim chairman of the Minjoo Party of Korea from January to August 2016 and a member-elect of the National Assembly on the party's proportional list since the April 2016 parliamentary election.
Ia menjadi ketua interim Partai Minjoo Korea sejak Januari 2016, dan anggota terpilih Majelis Nasional pada daftar proporsional partai tersebut sejak pemilihan parlementer April 2016.