The single-seat ward has been an opposition stronghold since the Workers' Party won it in 1991. SINGAPORE: The Workers' Party (WP) incumbent Dennis Tan will defend his Hougang SMC seat against People's Action Party's (PAP) Marshall Lim in the May 3 election. The candidates for the single-seat ward were confirmed on Wednesday (Apr 23) during Nomination Day after both candidates submitted their nomination documents at Poi Ching School in Tampines. Mr Tan, 54, a consultant and shipping lawyer at