The leadership contest of the governing Democratic Party is unfolding as a three-candidate competition. Song Young-gil, Kim Min-seok and Jung Cheong-rae have each pressed their strengths in messages to members and supporters.

Song campaigned on 'politics that wipes away tears,' stressing livelihoods and unity. Kim cast himself as a 'stable governing partner,' emphasizing cooperation with the administration. Jung aimed to rally the base with the slogan 'the right person for reform.'

The candidates traded jabs. When Kim questioned a rival's ability to run a campaign, Jung shot back that it was 'something said by someone who has never been party leader.' A contest over line and leadership continued.

The convention is seen as a test of the direction of governance and of party-government relations. Between the speed of 'reform' and the weight of 'stability,' members' choice draws attention.

The presidential office, meanwhile, reaffirmed that a constitutional amendment to allow the sitting president a second term is impossible, drawing a line that the amendment debate should be viewed separately from the contest.

In political circles, the new leadership's leanings are expected to reshape the calculus for legislative tasks and budget review.

The outcome will be decided by combining a members' vote with public opinion polling and other measures.