South Korea's ruling party grapples with internal rifts ahead of Seoul elections

South Korea’s ruling People Power Party is fighting internal battles as the June 3 local elections approach. Seoul Mayor Oh Se-hoon again declined to apply for further party nominations, a move that has deepened pressure from party chair Jang Dong-hyuk and widened splits within the leadership over how the Seoul contest should be run.

After Oh’s decision not to submit additional candidate applications, Jang said that nominations must rest on fairness and integrity, signaling a hard line in the party’s handling of the process. The tension within the PPP has intensified as the situation around nominations has grown murky.

The party’s nomination committee also lost its chief, with Lee Jeong-hyeon resigning and saying changes and reforms in the nomination process could no longer be advanced. His departure underscored the broader discord over how the party is managing the local race in Seoul, as well as other primaries in Daegu and Busan.

Within the PPP, a cohort of lawmakers and supporters has pushed for the early launch of an Innovation Campaign Committee to lead the local bidding. Some members say the move could accelerate reforms, while others worry it would sidelined the party’s current leadership, including Oh.

In Seoul, factions have publicly debated whether the party should broaden its appeal beyond the traditional conservative base. A first-term Seoul lawmaker pressed the party to move ahead with reforms, while a senior figure argued that delaying or denying competitive opportunities for candidates would undermine the party’s credibility.

There has also been talk that veteran reform-minded strategist Kim Jong-in could be considered to lead the Innovation Campaign Committee, a prospect that would signal a shift in the party’s approach to the local race and its broader reform agenda. Oh had reportedly met with Kim on March 8, fueling speculation about leadership roles for reform-minded figures.

The clash inside the PPP matters beyond Seoul because the city is a major political and economic hub. Seoul’s governance shapes local policies on housing, technology, infrastructure and business climate, all of which affect investors, the broader South Korean economy, and supply chains that include U.S. firms and chipmakers.

For the United States, the outcome of Korea’s internal party dynamics in Seoul signals how smoothly South Korea can pursue urban reforms, regulatory clarity, and foreign investment incentives. A stable, reform-minded administration in the capital could influence Korea’s tech sector policy, security coordination with allies, and the overall pace of policy alignment with U.S. interests.