Prior to winning his first
Legislative Yuan term in 2001, Kuo served two terms as mayor of
Guanyin, Taoyuan, from 1994 to 2002. He won reelection to the Legislative Yuan in 2004. In November 2003, Kuo Jung-tsung, , and
Hsieh Ming-yuan fought
Chung Shao-ho on the floor of the Legislative Yuan. 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. During his first legislative term, Kuo Jung-tsung also commented on the potential pardoning of expelled DPP members, and the possibility of leaking classified military information in a small-scale exercise observed by president
Chen Shui-bian. In his second term, Kuo expressed opposition to the legalization of gambling and to investment in China by the Taiwanese technology industry. Kuo lost reelection in 2008 to
Kuomintang legislative candidate . Kuo ran in the by-election for
Taoyuan County's 2nd district scheduled after Liao's conviction on vote-buying charges, and defeated . Kuo was sworn into office on 18 January 2010, and stepped down at the end of his term on 31 January 2012. During the
2010 New Taipei City mayoral election, a document signed by Kuo and became a topic of discussion. The document claimed that,
Eric Chu, during his tenure as
Taoyuan County Magistrate, had ended the county government's subsidies for agriculture and the elderly. In August 2010, Kuo opposed the nomination of
Su Yeong-chin to the post of vice president of the
Judicial Yuan, believing that judicial independence would be reduced, as both Su Yeong-chin and his brother
Su Chi were close to
Ma Ying-jeou. In March 2011, Kuo and fellow legislator
Lo Shu-lei opined that
Chunghwa Telecom did not need to charge fees for long-distance phone service, due to the small geographic size of Taiwan. That same month, Kuo also asked premier
Wu Den-yih about his position on
nuclear power. An analysis by Citizen’s Congress Watch undertaken after the
Eighth Legislative Yuan had ended revealed that Kuo had never spoken in any legislative committee for which he held membership. In 2013, Kuo supported
Annette Lu's call to impeach
Ma Ying-jeou. The following year, Kuo visited
Su Tseng-chang after Su announced that he would not run for reelection as Democratic Progressive Party chair or as the party's Taoyuan mayoral candidate. In November 2014, Kuo ran in the
local elections. He was elected to the
Taoyuan City Council alongside his niece and former Legislative Yuan aide, Kuo Li-hua. 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. ==References==