Previous system 300 members of the National Assembly were elected in the 2016 elections, of whom 253 (84%) were elected from
single-member constituencies on a first-past-the-post basis, and 47 (16%) from
closed party lists through
proportional representation (PR) by the
Hare quota largest remainder method. To win seats through proportional representation, parties needed to pass an
election threshold of either 5 single-member districts or 3% of the total list vote.
Electoral reform process An election reform bill was introduced in February 2019, which would change the allocation of part of PR seats with an
additional member system. The legislative process utilised the 85th Article of the National Assembly law, called the 'Fasttrack' system, which does not require agreement between all parties. This was opposed by the main opposition
Liberty Korea Party and
Bareunmirae Party member
Yoo Seong-min. The decision by
Sohn Hak-kyu, leader of the Bareunmirae, to approve the Fasttrack, and his dismissal of his fellow standing committee member
Oh Shin-hwan, stirred legal controversy. The Prosecution Service declared that Sohn's actions did not merit criminal charges. The Liberty Korea Party physically disrupted the National Assembly Secretariat in April 2019, to interrupt the Fastrack legal maneuver. The Prosecution Service then opened an investigation into the violence in the National Assembly, and possible violation of the National Assembly law. Several leading members of the LKP were
indicted, including leader
Hwang Kyo-ahn and then-floor leader
Na Kyung-won. The criminal charges included violence and violation of order. The bill was passed on 27 December 2019 despite physical obstruction in the Assembly voting area by the Liberty Korea Party. The
voting age was also lowered from 19 to 18 years old, expanding the electorate by over half a million voters. The
Democratic Party responded by setting up their own satellite party, the
Platform Party. In both cases, the main party stood candidates only in the constituency seats, whilst the satellite party stood only in the PR lists. This meant that the satellite party would receive the maximum number of compensatory seats, regardless of how
over-represented the parent parties were in the constituencies. Smaller parties did not set up satellites, because the advantage only appears if the party is over-represented in the constituencies.
Date and electorate The 2020 election for the National Assembly was held on 15 April, in accordance with Article 34 of the Public Official Election Act, which specifies that Election Day for legislative elections is on "the first Wednesday from the 50th day before the expiration of the National Assembly members term of office". Eligible voters were required to be registered and at least 18 years old on the day of the election, and to show an approved form of identification at the
polling place. Polls on Election Day were open from 6 a.m. to 6 p.m.
Korea Standard Time. Since 2009 voters have been entitled to vote from overseas. Voters could also cast early votes at any polling stations in Korea without prior notice. ==Political parties==