South Korea holds high-stakes parliamentary by-elections in Busan as three-way race intensifies

South Korea is holding parliamentary by-elections on June 3, 2026, with 14 National Assembly seats contested nationwide, including a competitive three-way race in Busan's buk-gap district. The Busan contest reflects deepening political divisions among candidates as campaign activity intensifies across the region. Parliamentary by-elections in South Korea often serve as barometers of public sentiment between general elections and can signal shifts in party strength ahead of the next general election.