According to the survey carried out by the Korea Research Center for Yonhap News Agency and KBS broadcaster, Ahn Hee-jung, Moon fellow party member and a provincial governor, finished second with 17 percent.
The poll was conducted on March 11 and 12 among 2,046 South Koreans.
The Constitutional Court of South Korea has unanimously upheld the parliament decision to impeach President Park Geun-hye, suspended over a corruption scandal. Park will now be removed from her post and early presidential elections will be held in South Korea within 60 days, approximately in early May.
A political scandal around the South Korean president broke out in late October 2016, when media reported that Park had allowed her close associate Choi Soon-sil, who did not hold any official post, to get involved in state affairs. Park allegedly extorted money from various corporations, including Samsung, with the assistance of Choi, who is currently under arrest.
