National Assembly Data Analysis: Yoon Yong-geun Was the People Power Party's Leftmost Lawmaker

Data shows Rep. Yoon Yong-geun sits furthest left in the People Power Party

The conventional wisdom is shaken the moment the bill sponsorships and voting records of the People Power Party's 110 lawmakers are analyzed. The lawmaker who displayed the most progressive legislative behavior at the heart of the conservative party was Rep. Yoon Yong-geun. Reps. Lee Jin-sook, Kwak Gyu-taek, and Ahn Sang-hoon followed, whose ideological coordinates sit to the left of not only the party average but even some opposition lawmakers.

The foundation of the analysis is an ideological coordinate, calculated by having artificial intelligence assess each lawmaker's bill sponsorships into a weighted average, then adjusted against the midpoint of the two major parties, the Democratic Party and the People Power Party. What matters more than the numbers themselves is relative position. The overall People Power Party average sits slightly to the right of center in both economic and social domains, but not by as wide a margin as one might expect. The vast majority of lawmakers cluster within a narrow band, while a small number at both extremes stretch the distribution.

12.4% deviation from the party line: Rep. Kim Tae-kyu's exceptional track record

Voting records that deviate from the party line reveal data of a different dimension. Rep. Kim Tae-kyu's defection rate of 12.4% far outpaced the 8.4% of second-place Rep. Lee Jin-sook. Compared with Rep. Han Ki-ho at 3.4% in third and Rep. Kang Sun-young at 3.0% in fourth, the gap is nearly fourfold. In a National Assembly locked into ruling-versus-opposition confrontations, defections exceeding 10% are unlikely to occur by chance. That is where the record reads as a systematic pattern of opposition votes.

What is interesting is that the top of the defection list partially overlaps with the top of the left-leaning coordinate list. Rep. Lee Jin-sook belongs to the very top group in the party on ideological coordinates as well. One interpretation is that support for progressive-leaning bills and defection from the party line are linked as a single pattern of behavior. Rep. Kim Tae-kyu, by contrast, defects the most but does not appear at the very top of the left-leaning coordinates. This shows that the left-right spectrum and party-line conformity do not necessarily coincide.

The far right: Yoo Eui-dong, Yoon Han-hong, Lee Chul-gyu, and Song Eon-seok

At the opposite end, Rep. Yoo Eui-dong occupies the furthest right position, followed by Reps. Yoon Han-hong, Lee Chul-gyu, and Song Eon-seok. In the case of Rep. Lee Chul-gyu, a senior figure of House leadership rank close to the party's core, the data reveals another fact: judged solely by legislative behavior, he belongs to the most conservative wing within the party.

Considering the political implications, the internal heterogeneity of the People Power Party stands out more on social and cultural issues than on economic ones. Rep. Yoon Yong-geun's extreme coordinates also appear to have been formed by an accumulation of labor and welfare bill sponsorships, confirming a basic tenet of data journalism: party affiliation does not equal ideological homogeneity.

The limits of quantitative analysis and remaining tasks

Of course, these coordinates reflect only parliamentary actions: bill sponsorship and voting. They cannot capture broadcast remarks, constituent sentiment, or strategic voting shaped by regional dynamics. The gap between publicly known images and the data should be read not as an analytical error but as an inherent limitation of quantitative indicators.

Even so, sponsorship and voting records are the most verifiable trail a lawmaker leaves. If Schopenhauer warned against the abstraction of happiness, political analysis must guard against the abstraction of image. The records of 110 lawmakers show that the People Power Party is not a single voice but a group divided into at least several strands.

Lawmakers mentioned in this article