SEOUL -- Lee Nak-yon, the former South Korean prime minister, declared his bid Tuesday for chairman of the ruling Democratic Party, a post that would make him the front-runner to succeed President Moon Jae-in.
Lee Nak-yon, seen as possible successor to Moon, runs for chairman of Democrats

Former Prime Minister Lee Nak-yon leads opinion polls of likely successors to President Moon Jae-in. (Photo by Yosuke Onchi)
SEOUL -- Lee Nak-yon, the former South Korean prime minister, declared his bid Tuesday for chairman of the ruling Democratic Party, a post that would make him the front-runner to succeed President Moon Jae-in.