Trinidad and Tobago: Political Parties & Elections

Trinidad and Tobago has operated for decades as a de facto two-party system, with two parties dominating the twin-island republic's politics since it gained full independence from Britain in 1962. The People's National Movement (PNM), founded in 1955, and the United National Congress (UNC), founded in 1989, have between them supplied every prime minister the country has had since the early 1990s, with control of government alternating between the two on a fairly regular basis.

The House of Representatives, the lower chamber of Trinidad and Tobago's Parliament, is composed of members elected to represent single-seat constituencies, with the number of constituencies expanded from 36 to 41 ahead of the 2007 general election. Members serve five-year terms unless Parliament is dissolved earlier. After an election, the person able to command the support of a majority of House members is appointed prime minister and invited to form a government.

Beyond the two dominant parties, smaller regional and ideological parties also compete, including the Tobago People's Party, founded in 2023 to represent Tobagonian interests within the House of Assembly. The PNM is notable among Trinidad and Tobago's parties for contesting seats in both Trinidad and Tobago, while several smaller parties focus their efforts on one island alone.