PAP candidate Dr. Koh Poh Koon addressing the media after a rally.

Prime Minister Lee Hsien Loong addresses the nation at a PAP rally during the Punggol East By Election

MP Pritam Singh delivers a speech during the Hougang By Election

Dr. Chee Soon Juan delivers his keynote address as the SDP launches their GE 2015 strategy.

A Workers' Party supporter boosting for Png Eng Huat at a WP rally during the Hougang By Election

WP chief Low Thia Kiang braves the rain to speak to the podium during the Hougang By Election.

Political adversaries Han Hui Hui and Jason Chua take a moment to snap a selfie together amid all the hubbub during nomination day for the Bukit Batok By Election.

Dr Janil Puthucheary is hugged by a constituent while campaigning during the 2015 GE

A supporter holds up placards at presidential candidate Halimah Yacob's nomination.