| A splinter party of SDP set up by several cadres loyal to its leader Chiam See Tong after his conflict with other party leaders reached a pinnacle. Days before the 1997 General Election, Chiam left SDP to join SPP. When SDA was established in 2001, SPP became its linchpin party and gave up its symbol to SDA. Ten years later, SPP pulled out of SDA mainly due to an internal row over RP's conditions for joining the alliance. In the 2011 GE, Chiam handed his Potong Pasir seat of 28 years to his wife, Lina Loh, to move to a GRC but SPP lost in both contests, although Loh did well enough in the former stronghold to land a Non-Constituency Member of Parliament role. The margin in Potong Pasir widened further in the 2015 polls, leaving the party without representation for the first time in 18 years. The Chiams hung up their boots and former SDA NCMP and NSP secretary-general Steve Chia, who had crossed over in 2017, took over as SPP secretary-general in 2019. |
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