SEOUL, Nov. 9 (Xinhua) -- South Korean President Moon Jae-in's approval rating fell this week on media reports that prosecutors' investigation into Moon's senior secretary was launched, a pollster said Thursday.
According to the Realmeter poll, support for Moon was 69.3 percent this week, down 1 percentage point from the previous week.
It was based on a survey of 1,516 voters conducted from Monday to Wednesday. It had 2.5 percentage points in margin of error with a 95 percent confidence level.
Moon's senior secretary for political affairs was suspected of being involved in embezzlement charges, levied against his three former aides who were arrested earlier this week.
Moon's approval rating, however, was bolstered by U.S. President Donald Trump's two-day state visit to South Korea.
The daily support for Moon tumbled to 67.3 percent when the arrest of three former aides of the senior presidential secretary for political affairs was reported on Tuesday.
It rebounded Wednesday to 70.4 percent as Trump closed out his state visit by delivering a speech in the National Assembly to praise the fast development of South Korea.
Support for Moon's ruling Democratic Party declined 2.9 percentage points over the week to 48.8 percent this week, but it kept the top post by a wide margin.
The main opposition Liberty Korea Party gained 19 percent of support, up 2.2 percentage points from the previous week.
The centrist People's Party garnered 6 percent in approval scores, with the minor progressive Justice Party and the minor conservative Righteous Party winning 5.2 percent and 5.3 percent respectively.
