South Korea’s political landscape is shifting rapidly after this week’s local elections, with President Lee Jae Myung preparing a Cabinet reshuffle and both major parties bracing for a fierce leadership battle. The president will nominate a new prime minister on Sunday, a move that signals his priorities for the coming year. This leadership battle will play out in the ruling Democratic Party and the opposition People Power Party alike, reshaping the nation’s political dynamics.
Lee has narrowed his prime ministerial choices to two close allies. Presidential chief of staff Kang Hoon-sik and Justice Minister Jung Sung-ho stand as the leading contenders. Jung, a five-term lawmaker, has maintained a nearly four-decade political relationship with Lee since they met in 1987. Moreover, he is a central figure in the pro-Lee faction and has overseen prosecutorial reform efforts. Kang, meanwhile, has served as Lee’s trusted chief of staff and special envoy for strategic economic cooperation. Consequently, the nomination will directly influence the upcoming leadership battle within the ruling camp.
Furthermore, the prime minister nomination may trigger a broader Cabinet reshuffle. Several ministerial posts and the vacant senior secretary for AI and future planning are under review. This reshuffle follows the local elections that produced no clear winner for either major party. However, the results immediately intensified the leadership battle inside the opposition. The People Power Party suffered a heavy defeat, losing 12 of the 16 metropolitan mayoral and gubernatorial races. In response, floor leader Song Eon-seog resigned on Friday, taking responsibility for the loss. “In accordance with the will of the people, I believe our party also needs a new beginning,” he said.
Party chair Rep. Jang Dong-hyeok now faces escalating criticism. Some lawmakers openly questioned his leadership after the electoral defeat. Rep. Park Jeong-hun called Jang “the grim reaper of elections” and ruled out his chances in the next convention. Similarly, Rep. Yoo Ui-dong urged Jang to assess the results honestly and consider his future. This internal revolt deepens the leadership battle and could force a change at the top.
Meanwhile, the ruling Democratic Party is turning its attention to its own national convention in August. Incumbent chair Rep. Jung Chung-rae may seek another term. However, outgoing Prime Minister Kim Min-seok is widely expected to run, and former party leader Song Young-gil’s recent local election victory in Incheon adds another contender. This three-way competition will define the party’s direction. Ultimately, the leadership battle on both sides will determine how South Korea navigates the political challenges of Lee’s second year in office. The president’s new Cabinet and the parties’ new leaders will set the course for the next phase of governance.
