In the March 2018 Legislative Council by-elections for the four seats left vacant by the disqualified legislators over the oath-taking controversy, three candidates were disqualified by the Electoral Affairs Commission (EAC) returning officers, including Demosistō's Agnes Chow on the basis of that she "cannot possibly comply with the requirements of the relevant electoral laws, since advocating or promoting 'self-determination' is contrary to the content of the declaration that the law requires a candidate to make to uphold the Basic Law and pledge allegiance to the [Hong Kong Special Administrative Region]".
In August, a controversy erupted in 2018 when the FCC hosted a lunchtime talk with Andy Chan (pro-independence political activist. He is a founding member and the convenor of the Hong Kong National Party, the first party to advocate for Hong Kong independence), convenor of the Hong Kong National Party (HKNP) to take place on 14 August. Victor Mallet, Vice-chairman of the press organisation, chaired the session.
Mallet (Victor Mallet visa controversy is an incident in Hong Kong in 2018 that many pundits consider as having major implications for freedom of speech in Hong Kong. The Foreign Correspondents' Club scheduled a lunchtime talk for 14 August) was subjected to a four-hour interrogation by immigration officers on his return from Thailand on Sunday 7 October before he was finally allowed to enter Hong Kong.
On 2 December, Chu was told that his candidacy was invalid, making him the tenth candidate barred from running in the election for his political belief and the first banned from running in the village-level election.