Moon Jae-in, the front-runner in the main opposition party\'s presidential nomination race, secured his 12th straight win in the regional primary on Saturday, further cementing his overwhelming lead. Moon\'s latest victory in Gyeonggi Province surrounding Seoul earned him a total of 53.5 percent of votes cast, which raised the prospects that he may be able to avoid a run-off that could take place if none of the four contenders wins more than half the votes in the primary.