A former student activist , human rights lawyer and chief of staff to then-president Roh Moo-hyun , Moon served as leader of Democratic Party of Korea ( 2015 – 2016 ) and a member of the 19th National Assembly ( 2012 – 2016 ) . He was also a candidate for the Democratic United Party in the 2012 presidential election in which he lost narrowly to Park Geun-hye . As President , Moon Jae-in has met with North Korean chairman Kim Jong-un at inter-Korean summits in April , May , and September 2018 . On June 30 , 2019 , Moon met with both North Korean chairman Kim Jong-un and United States president Donald Trump at the Korean Demilitarized Zone , making him the third South Korean president to meet their North Korean counterpart
May
May 2018 inter-Korean summit
Moon Jae-in