Question: The impeachment of Park Geun-hye, former President of South Korea, was the culmination of a political scandal involving interventions to the presidency from her aide, a fresh election was held on which date, electing Moon Jae-in, former leader of the Democratic Party, as the next president?
Sentence (from "Moon Jae-in"): Moon was elected after the impeachment of his predecessor, Park Geun-hye in the 2017 South Korean presidential election.
Relevant evidence: No