South Korea's Supreme Court will make a ruling on Thursday after an appeal by prosecutors against a court decision to clear the former leader of the opposition Democratic Party Lee Jae-myung of violating the election law,

South Korea's Democratic Party presidential candidate Lee Jae-myung maintained a significant lead in opinion polls on Monday, though his eligibility to run rests on the outcome of legal trials over election law violations.

South Korea’s main liberal opposition party tapped Sunday its former leader Lee Jae-myung as presidential candidate in the upcoming June 3 vote. The Democratic Party said Lee has won nearly 90% of the votes cast during the party’s primary that ended Sunday,