the alliance with the SJP and PKMS. In 2010, Chiam tried to bring the Reform Party into the SDA. He reportedly accepted the conditions the RRP set out for joining the alliance, but the terms of entry were opposed by other members of the Central Executive Committee (CEC) who blocked the move. Chiam also suffered a mild stroke in 2008, following which he had to cut back on some of his political activities. This led some CEC members to question whether he was able to properly fulfill his role of Chairman of the alliance. On 28 February 2011, the CEC voted to relieve Chiam of his role as chairman, however, the CEC stressed that they still hoped to field Chiam as a candidate at the next general election. Chiam had earlier announced his intention to stand in a Group Representation Constituency while leaving the Potong Pasir Single Member Constituency to a successor at the next general election. Two days later, Chiam announced that the party would be withdrawing from the SDA and that he would stand under the banner of the SPP instead of the SDA at the next general election. Due to the withdrawal, Chiam's chairman role was succeeded to Desmond Lim, the leader of SJP. At the elections, Chiam announced that he led his team to contest the Bishan-Toa Payoh Group Representation Constituency, leaving his Potong Pasir ward to his wife, Lina Loh Woon Lee (Lina Chiam). This was Loh's debut in politics, although she had tirelessly campaigned with her husband over the years in many general elections in Singapore, including Cairnhill and Potong Pasir constituencies. Chairman Sin was also fielded to contest the newly-formed Hong Kah North SMC, a ward which was formerly part of the Hong Kah GRC (now Chua Chu Kang GRC). After the polling day, the party was defeated in all the constituencies contested, including Potong Pasir which was reclaimed by the PAP for the first time since 1984; consequently, Chiam's defeat ended his 27-year tenure in Parliament. However, Loh was offered a post for the Non-Constituency Member of Parliament (NCMP) as a result of being the best performing opposition candidate (amongst unelected candidates) after narrowly losing the election 49.64% to the PAP's Sitoh Yih Pin's 50.36% (a margin of 114 votes). In overall terms, the SPP managed to clinch 41.42% (62,504 votes) of the total number of votes in the constituencies that it