However, Freedom House has noted that elections in Singapore are technically free of electoral fraud. Throughout the history of the Republic of Singapore, hundreds of politicians have been elected in parliament, of whom majority of unique candidates represent the ruling People's Action Party including surviving stalwarts like Lee Khoon Choy. Since 1965, 19 opposition politicians have been elected into parliament, including Joshua Benjamin Jeyaretnam, Chiam See Tong, Low Thia Khiang, Ling How Doong, Cheo Chai Chen, Chen Show Mao, Yaw Shin Leong, Png Eng Huat, Lee Li Lian, and also ten incumbent candidates from the Workers' Party including leader Pritam Singh, chairwoman Sylvia Lim and MP Muhamad Faisal bin Abdul Manap.