South Koreans head to the polls Tuesday to elect a new president after an attempt to impose martial law at the end of last year triggered its worst constitutional crisis in decades.Opposition Democratic Party nominee Lee Jae-myung was the frontrunner ahead of conservative ruling People Power Party candidate Kim Moon-soo in final polls conducted last week.

South Korea is heading to the polls to elect a new leader, after their former president Yoon Suk Yeol was impeached and removed from office for briefly placing the country under martial law in Decembe...

Lee, 60, the Democratic Party candidate, was the driving force behind an opposition-led campaign to oust Yoon, whose Dec. 3 marital law decree plunged South Korea into turmoil.