[3] On 4 May 1992, Chen and fellow DPP members Huang Hsin-chieh and Edgar Lin walked out of the assembly, criticizing the body for procedural violations during a vote against reforms proposed by the opposition.

[18] While with the organization, Chen pushed for Taiwanese athletes to use Taiwan as a national team name, instead of Chinese Taipei, starting with the 2020 Tokyo Olympics.

[19][20] He made several statements on the topic in 2018 in support of a referendum seeking to change Taiwan's national team name.

[26] He stated later that year that he believed the political "status quo" between China and Taiwan was separation, not the 1992 consensus.

[27] Prior to the 2019 Democratic Progressive Party presidential primary, Chen was supportive of William Lai's bid for office.