The Taipei District Prosecutor's Office is currently investigating an espionage case involving advisors from both the blue and green camps, with Guo Wen-bin, a former aide to ex-President Chen Shui-bian, caught up in it. In response, Chen Chao-Tzu of the Taiwan People's Party remarked that Guo quickly defected to Tsai Ing-wen's camp when Chen Shui-bian faced legal troubles, making him a 'loyal subordinate of Tsai.'

In a Facebook post, Chen noted that while Guo was indeed a former aide to Chen Shui-bian, he abandoned him during a time of judicial persecution, blocking support for Chen's medical parole. She recalled an incident in 2009 when she and others sought to meet Tsai Ing-wen to gather support for Chen, but were stopped by Guo at the door.

Chen emphasized that Guo was greatly valued once Tsai came to power, heading the party's social movement department, thus referring to him more accurately as a 'loyal subordinate of Tsai.' She highlighted Guo's close relationships with grassroots organizations and his recent push for support of the 'recall movement.' Given the allegations of espionage surrounding him, she questioned whether the recall movement had been infiltrated by the Chinese Communist Party. She urged national security agencies to investigate potential espionage within these groups.

In conclusion, Chen raised the issue of how the Democratic Progressive Party, which had previously boasted that the presence of spies meant they were enemies' targets, would now reconcile with the involvement of other affiliated advisors in espionage cases.