․ Deputy Speaker of the 21st National Assembly
․ Member of the 21st National Assembly (2000-2004, 2005-2008, 2008-2012, 2016-2020, 2020-Present)
․ President, Korea-Japan Parliamentarians’, National Assembly
․ President, Parliamentarians’ Football
․ Former Chairman, Nomination Committee for the Local Election on June 1, 2022, People Power Party
․ Former Chairman, Nomination Committee for the By-election on April 7, 2021, People Power Party
․ Former Floor Leader & Acting Party Leader, Saenuri Party
․ Former Secretary General, National Assembly Secretariat
․ Former Senior Secretary to the President Lee Myung-bak for Political Affairs
․ Former Reporter, Hankook Ilbo (Editorial writer & correspondent to Washington DC)