Chua Chu Kang SMC faced a four-cornered fight, including the ruling party itself in the 1997 general election and the PAP was challenged by Singapore Democratic Alliance's Steve Chia in the 2001 and 2006 general elections.
In the 1997 general election, Chua Chu Kang SMC faced a multi-party challenge, including its own ruling party. In the 2001 and 2006 general elections, the PAP was confronted by Steve Chia of the Singapore Democratic Alliance.