Democratic Party Reps. Song Young-gil (from left), Jung Chung-rae, Han Byung-do and Kim Min-seok pose for a photo during a Democratic Party primary held in Daegu on Sunday. (Yonhap) Democratic Party of Korea Rep. Kim Min-seok extended his narrow lead in the party's leadership primary on Sunday over his rival Rep. Jung Chung-rae, according to the results provided by the ruling party.In the fourth of six rounds of voting in Gangwon Province, North Gyeongsang Province and Daegu on Sunday, Kim was ahead of Jung by 1.48 percentage points, or 3,068 votes.Kim has so far won 95,821 votes, or 46.01 percent of all votes, while Jung has 92,735 votes, or 44.53 percent.By region, Kim is ahead of Jung in Gangwon Province and North Gyeongsang Province, while Jung is ahead of Kim in Daegu.Kim is a four-term lawmaker who formerly served as the prime minister of the incumbent Lee Jae Myung administration. Jung, a liberal firebrand who is also a four-term lawmaker, is seeking reelection after having served as the party's leader from August 2025 until June.The other candidate in the three-way race, six-term lawmaker Rep. Song Young-gil, has earned 19,715 votes, or 9.47 percent, so far.In the elections for supreme council members, where eight candidates are vying for four seats, Reps. Choi Min-hee, Park Sun-won, Han Min-soo and Seo Mi-hwa hold the top four positions as of Sunday.The tally, however, will be finalized at the national convention on Aug. 17.Votes in Daegu, North Gyeongsang Province, and South Gyeongsang Province carry greater weight by 5 percentage points under a new rule made to encourage voting among party members in the country's southeast, considered a right-wing stronghold. The rule applies starting with this year's leadership primary.The Democratic Party has over 1.5 million dues-paying members and Sunday's rounds of voting were held in regions home to a combined 70,000 members.The three leadership candidates are set for primaries in the left-wing stronghold of the country's southwest, home to some 510,000 party members, on Saturday and voting will move to the Greater Seoul area, with some 590,000 members, on Aug. 16. If combined, these regions are home to over 70 percent of all party members. The final televised debate is scheduled for Wednesday.The final result will be tallied with party members' votes and opinion poll results and combined at the national convention on Aug. 17.