He was the leader of the Workers' Party (WP) and the leader of the opposition in Parliament.
He had been a Member of Parliament (MP) since 1991, representing Hougang Single Member Constituency from 1991 to 2011, and Aljunied Group Representation Constituency since 2011.
He is the MP responsible for the Bedok Reservoir–Punggol Division within Aljunied GRC.Low is one of six elected opposition MPs in Singapore's 13th Parliament.