Chung had pulled down a protest sign held by another Democratic Progressive Party lawmaker, who was opposing the scheduling of a defense committee meeting on the same day as a gathering of the general legislature.

[3] During his first legislative term, Kuo Jung-tsung also commented on the potential pardoning of expelled DPP members,[4] and the possibility of leaking classified military information in a small-scale exercise observed by president Chen Shui-bian.

[8] Kuo ran in the by-election for Taoyuan County's 2nd district scheduled after Liao's conviction on vote-buying charges,[9] and defeated Chen Li-ling [zh].

[15] In March 2011, Kuo and fellow legislator Lo Shu-lei [zh] opined that Chunghwa Telecom did not need to charge fees for long-distance phone service, due to the small geographic size of Taiwan.

[21][22] Kuo Jung-tsung resigned the council seat in August 2015, before an appeal to the Taiwan High Court regarding violations of electoral law was heard.