Tan Cheng Bock

FORMER Member of Parliament Tan Cheng Bock has quit the ruling People's Action Party (PAP) and indicated that he may be a candidate in the coming presidential election.He told The Straits Times on Thursday: 'Many people have been urging me to stand as president, and I am very honoured. But there are rules I have to follow. One rule is I must apply for the certificate of eligibility first.'Dr Tan,