People Power Party floor leader Jeong Jeong-sik (left) is speaking at the Supreme Council meeting held at the National Assembly on the 16th. Senior Reporter Park Min-gyu The opposition party will attend the 78th Constitution Day celebration event held on the 17th. Considering that this is the first event held since Constitution Day was designated as a legal holiday in 18 years, the People Power Party changed its stance from non-attendance to attendance. The People Power Party announced in a media notice at 9 p.m. on the 16th that floor leader Jeong Jeong-sik will attend at 10 a.m. on the 17th.