During the final plenary session of the 21st National Assembly, a bill requiring the appointment of a special counsel to investigate the Yoon Suk Yeol administration's handling of a marine's death failed to pass in a revote. The bill, initially passed by the opposition-controlled Assembly and later vetoed by President Yoon, aimed to probe allegations that the administration had pressured the Marine Corps' internal investigator to drop charges against a division commander in relation to the marine's death during a search and rescue operation in 2023. Despite gaining 179 votes in favor and 111 against, the bill did not secure the necessary two-thirds approval from lawmakers present to override the presidential veto. The ruling People Power Party rejected the bill, advocating for the marine's case to be treated as a regular criminal investigation rather than through a special counsel. The Democratic Party plans to reintroduce the bill in the upcoming 22nd National Assembly, as it was unlikely to pass in the revote due to the requirement of substantial support from ruling party lawmakers. Main opposition leader Rep. Lee Jae-myung urged the ruling party to support the bill, emphasizing the importance of adhering to conscience and upholding the Constitution. Despite efforts to sway ruling party members, the bill did not garner sufficient backing for passage, setting the stage for potential reconsideration in the new assembly.