Lee Jae-myung, the liberal South Korean politician elected on Tuesday as the country's next leader, overcame a knife attack, martial law and criminal charges on his unexpected path to the presidency.

South Koreans will head to the polls on Tuesday morning (Monday at 5:00 p.m. EST) to select a new leader as their predecessor awaits trial.

Pre-election surveys suggest Yoon Suk Yeol's liberal rival, Lee Jae-myung, appears headed for an easy win, riding a wave of public frustration in the wake of Yoon's martial law debacle.