Former Prime Minister Rep. Kim Min-seok on Monday announced his bid to run for Democratic Party of Korea chair in the upcoming party convention in August, slamming his rival for "self-serving" politics. The outcome of the ruling party's national convention will likely serve as a litmus test to gauge whether the liberal President Lee Jae Myung could cement his leadership within the liberal bloc. Kim's speech in Gwangju was filled with criticism directed at Rep. Jung Chung-rae, a liberal firebrand