SEOUL, April 18 (UPI) -- Lee Jae-myung, the polarizing former head of South Korea's opposition Democratic Party, is maintaining a strong lead among potential candidates for a June snap election to replace impeached President Yoon Suk Yeol, a new survey said Friday. The poll , conducted by Gallup Korea, found Lee with 38% support -- his highest rating among Gallup surveys this year. He remains well ahead of potential opponents from Yoon's People Power Party, which will pick its candidate on May