Passage: The Housing Development Board (HDB) continued to promote public housing with new towns, such as Ang Mo Kio, being designed and built. These new residential estates have larger and higher-standard apartments and are served with better amenities. Today, 80–90% of the population lives in HDB apartments. In 1987, the first Mass Rapid Transit (MRT) line began operation, connecting most of these housing estates and the city centre.The political situation in Singapore continues to be dominated by the People's Action Party.  The PAP won all the parliamentary seats in every election between 1966 and 1981. The PAP rule is termed authoritarian by some activists and opposition politicians who see the strict regulation of political and media activities by the government as an infringement on political rights. The conviction of opposition politician Chee Soon Juan for illegal protests and the defamation lawsuits against J.B. Jeyaretnam have been cited by the opposition parties as examples of such authoritarianism. The lack of separation of powers between the court system and the government led to further accusations by the opposition parties of miscarriage of justice.

Question: What is the ruling party in Singapore?
People's Action Party