The inevitable slide in popularity has finally hit President Lee. It seems like every Korean President enjoys initial high popularity and then eventually hits a sharp fall when they can’t deliver on all the promises they made during the campaign:

President Lee Jae Myung’s approval rating fell 2.8 percentage points to 40.2 percent, the lowest since he took office, marking the sixth consecutive week of decline, a Realmeter poll showed Monday.
The poll, conducted Aug. 18-21 among 2,026 adults, found 56.9 percent disapproved of Lee’s performance, up 2.8 percentage points from the previous week.
Realmeter attributed the decline to growing distrust over the government’s housing policies, political clashes over judicial and constitutional issues, and security concerns following the scaling back of South Korea-US joint military exercises. The pollster said support among conservatives and those aged 70 and older had weakened.
The ruling Democratic Party of Korea also saw its support fall 6 percentage points to 41.9 percent, while the opposition People Power Party rose 4.5 points to 37.6 percent, according to a separate survey of 1,009 adults conducted Aug. 20-21.
You can read more at the link, but I had Grok create a chart that shows the Presidential approval rating at the beginning of their term and what they finished with. As that chart shows each President say deep declines in their approval rating. Moon Jae-in does stand out as being the most popular President and also the only one not bogged down with scandals:







