Michael Palmer resigns: By-election in Punggol East?
The prospect of fourth election in two years was one of the key talking points to emerge after Mr Michael Palmer's shock resignation on Wednesday.
Asked about it at the press conference, Deputy Prime Minister Teo Chee Hean said it would be a matter that is left up to Prime Minister Lee Hsien Loong.
"Whether there will be a by-election and if so, when is a matter for the PM to decide," he said.
The episode does bear some parallel to events that triggered the by-election in Hougang earlier this year. In that case, Worker's Party MP for Hougang Yaw Shin Leong was expelled from the party after it emerged that he had an extra-marital affair.