Kim Min-seok, a candidate for the Democratic Party of Korea's leadership, strongly criticized author Yoo Si-min's "Reconstruction Theory" and "Penmanship Theory," arguing that anyone who agrees with these arguments is unqualified to be party leader. He called Yoo's ABC theory "defamation that evaluates the president as the head of a single group" and emphasized that factional acts such as "birthday voting guides" are grounds for resignation. Furthermore, regarding recent opinion polls showing candidate Jeong Cheong-rae in the lead, he raised doubts by saying, "There has never been a case where I have ranked first among the Democratic Party's supporters." If elected party leader, Kim plans to establish various organizations for solidarity, unity, and expansion, and to promote reforms to the nomination system.