Tan Chuan-Jin resigned his post and Speaker of Parliament and from the People's Action Party on 17 July 2023 due to an extramarital affair with Tampines GRC Cheng Li Hui.
Tan Chuan-Jin relinquished his role and connection to the People's Action Party on July 17, 2023, after being embroiled in a controversy surrounding an illicit affair with Tampines GRC Cheng Li Hui.