Defunct The Bareun Party (Korean: 바른정당; Hanja: 바른政黨, lit.

[12] In May, a week before the presidential election, 13 lawmakers affiliated with the party announced their decision to defect and return to the LKP.

[12] The decision came after the party's presidential candidate, Yoo Seong-min, declined to join forces with LKP's Hong Joon-pyo and PP's Ahn Cheol-soo and field a single presidential candidate.

[12] Ahead of a leadership contest in November 2017, an additional eight lawmakers defected, and rejoined the LKP.

[14] On 9 January 2018, lawmaker Kim Se-yeon,[15] Gyeonggi Province Governor Nam Kyung-pil,[16] and lawmaker Park In-sook[16] defected from the party, all of whom rejoined the LKP.