The first hearing of liberal Democratic Party presidential candidate Lee Jae-myung's retrial for alleged violations of the Public Official Election Act is scheduled for May 15.

South Korea’s Supreme Court ruled that presidential candidate Lee Jae-myung violated election law and sent the case back to the high court for final sentencing, in a move that potentially upends the race for the country’s next leader.

South Korea’s main liberal opposition party has tapped its former leader Lee Jae-myung as presidential candidate in the June 3 vote.