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 fulfil his role of Chairman of the alliance.