South Korea's ruling party pushes local elections as Ulsan mayoral race heats up
South Korea’s ruling Democratic Party is intensifying its push for the June 3 local elections, with regional primaries and candidate debates moving into high gear. In the Busan–Ulsan–Gyeongnam corridor, the Ulsan mayoral primary will proceed with a joint debate on the 16th, an online joint rally on the 17th, and a three-candidate main primary from the 18th to the 20th. If no candidate secures a majority, a two-person runoff would be held from the 29th to the 31st.
The Ulsan race features three contenders: incumbent lawmaker Kim Sang-wook, former Blue House secretary Lee Seon-ho, and An Jae-hyeon, a former senior figure with the local party’s organization. The contest highlights the party’s effort to consolidate support in a region long dominated by heavy industry and port activity, with Ulsan hosting significant Hyundai Motor Group facilities and related suppliers.
Kim Sang-wook’s candidacy has drawn attention because he switched from the main opposition People Power Party to the Democratic Party after the last cycle. Rival candidates have challenged his “identity” and questioned whether a candidate who changed parties can credibly lead in Ulsan, a city where voters often weigh loyalty and local performance alongside policy.
Lee Seon-ho has pressed for closer scrutiny of Kim’s record, arguing that voters should examine issues such as Kim’s stance on core Democratic Party livelihood bills, his positions on the proposed administrative integration of Busan–Ulsan–Gyeongnam, and a controversy over a former lawmaker’s listing on a corporate board. Kim has described the criticisms as political attacks and has signaled a defense in due course.
In Busan, the party’s nomination race is also moving forward. On May 13, Rep. Jeon Jae-su filed for the nomination, entering a contest with former Busan City Party chairman Lee Jae-sung. A Democratic Party panel will conduct an official nomination interview on May 16, with further details on the downstream primary schedule expected to follow.
Beyond PK, Seoul and the broader metropolitan region are witnessing a new round of policy-focused pledges. In Seoul, candidates such as Park Joo-min have proposed measures like live-streaming executive meetings and expanding support for menstruation products for women and youth. Candidate Jung Won-oh has emphasized accelerating the construction of ongoing transit projects to improve access near major stations, while Jeon Hyun-hee has advocated seven transport-related pledges, including free school commuting in some form.
The party is also signaling a renewed emphasis on ground-level campaigning. Officials say they will form a full-field operations apparatus around May, reviving a neighborhood-focused “alley-by-alley” campaign model first used in the 2020-2022 period. To broaden voter engagement, the party plans “mission-type” events that test candidates’ ability to respond to real-world needs.
Examples circulating inside the campaign plan include a “basket-millions” style exercise where candidates shop at local markets to compare actual prices with posted estimates, and a “risk management” scenario exercise that simulates disasters or severe weather to assess administrative readiness. The aim is to translate campaign promises into tangible demonstrations of competence at the local level.
Why this matters to U.S. readers: these local elections shape governance in key economic hubs—Busan and Ulsan host major ports and heavy industry, with direct implications for trade routes, supply chains, and energy and manufacturing sectors that affect U.S. companies. Transit and urban policy proposals influence regional infrastructure development and tech-enabled mobility. The political climate also signals how Korea will balance domestic social safety nets with market reforms, which can affect bilateral economic policy, security cooperation, and collaborative technology initiatives with the United States.