During Chun Doo-hwan's regime, he was arrested and put in prison two times for participating in democratization movements.

The human rights lawyer that defended Kim at the time was Park Won-soon, the Mayor of Seoul from 2011 to 2020.

[4] He was reelected to the North Jeolla Provincial Assembly in the 2010 South Korean local elections.

He resigned from his post on December 30, 2019 in order to prepare for the 2020 South Korean legislative election.

[9] Kim once again ran for the Jeonju C constituency as the Democratic Party of Korea candidate, and defeated Chung Dong-young with 66.65% of the vote.