Lee Jae-myung, the liberal South Korean politician favoured to become the country's next leader, has overcome a knife attack, martial law and criminal charges on his unexpected path back toward the presidency.

Lee Jae-myung, a liberal who wants greater economic parity in South Korea and warmer ties with North Korea, became the main opposition party’s presidential

The former Democratic Party chief had led the opposition-controlled parliament’s impeachment of Yoon over the imposition of martial law in December.