After months of political turmoil, South Koreans will head to the polls Tuesday to elect a president to succeed disgraced former leader Yoon Suk Yeol, who was ousted from office over his ill-fated decision to impose martial law in December.

By Josh Smith SEOUL (Reuters) -South Korean liberal candidate Lee Jae-myung is projected to win next week's snap presidential election, a result that could reorient a major U.S. ally on policies ranging from China to nuclear weapons and North Korea.