In February 2016, he stood unsuccessfully in the 2016 New Territories East by-election. Representing not only his party but the entire mainstream pro-Beijing camp, he placed second behind the Civic Party's Alvin Yeung, receiving 150,329 votes, 10,551 fewer than his rival. Chow stood again in the September general election, in which led one of the two DAB's tickets in the territory-wide District Council "super seat" alongside chairwoman Starry Lee. He received 264,339 votes, 13.84 percent of the vote share and was elected to the Legislative Council of Hong Kong in the fourth place out of five seats, ousting another veteran pro-Beijing politician, Wong Kwok-hing of the Hong Kong Federation of Trade Unions.
Legislative Councillor
As the vice-chairman of the Legislative Council select committee to enquire as to the recipient of HK$50 million, Chow was involved in a scandal relating to Chief Executive Leung Chun-ying and Australian engineering firm UGL Limited. It was found that a "CEO-CE" computer belonging to Leung's office had made 47 edits to documents that Chow presented to the select committee regarding the scope of the select committee's investigation on 15 May 2017. This behind-the-scenes discussion between Leung and Chow was condemned by the pro-democracy camp, and led to some filing complaints to the Independent Commission Against Corruption. Pro-democrats also demanded that Chow resign from the select committee as he had lost credibility, and considered a motion to censure Chow in the Legislative Council House Committee. They warned that the legislature's independence was under threat, as Democratic Party legislator Andrew Wan said the case reflected "the executive branch's unprecedented meddling with a LegCo probe". Chow apologised for his "lack of political sensitivity" in not informing the select committee of Leung's "personal input", but he denied any wrongdoing in discussing the matter with Leung in private. On 19 May 2017, Chow resigned from the select committee "hoping to calm the political storm", whilst continuing to maintain that he had not done anything wrong.
Political views
Chow often criticises the pan-democracy camp, questioning whether someone who truly loved China would demand an end to one-party rule, as the Beijing government required the Chief Executive candidate to love China and love Hong Kong and wanted to exclude the pan-democrats. He identifies as a "patriot" and opposes calls for Hong Kong independence or self-determination. Chow challenged Jimmy Lai, the boss of the pro-democracy Next Media and supporter of the pro-democracy Occupy Central, for meeting United States Deputy Secretary of DefensePaul Wolfowitz. He also criticised a call for Hong Kong's independence from China as irresponsible. Chow has expressed prejudice against Hong Kong's ethnic minorities such as supporting a crackdown on the refugee population in Hong Kong based on unverified claims that refugees are responsible for crimes in the area. Access to Information requests from Justice Centre Hong Kong have debunked these fears as not being based upon any measurable increase in crime. During the 2016 Hong Kong Legislative Council election, Chow's campaign was vocal in its opposition to Hong Kong independence and same-sex marriage. His re-appointment to the Equal Opportunities Commission in 2017 was protested by civil groups and pro-democracy politicians for Chow's anti-gay rights remarks. Previously Chow signed a joint statement urging the government to appeal a court's ruling of granting welfare benefits to a gay civil servant for his husband. He urged his supporters to voice their opposition to the legalisation of same-sex marriage and protect "traditional family values."