Why Kim Min-seok is calling for the impeachment of Cho Hee-dae

It seems like a buildup to send Jjit-taek-dong following Roh Jae-jang. Min-seok was the one who sent Roh Jae-jang away. Min-seok is working hard to make Jjit-taek-dong follow in Roh Jae-jang's footsteps.