Partido da Social Democracia Brasileira (PSDB)

Wikipedia describes it as centre-right today. Aécio Neves is its president. It is named in the market on which party holds the most Senate seats after the 2026 election.

History

The PSDB grew out of social-democratic opposition to the military dictatorship and was founded in 1988. Cardoso governed as president from 1995 to 2003, and the party's candidates were runners-up in presidential elections from 2002 to 2014 before a sharp decline in 2018 and 2022. In 2022 it won 19 of 513 Chamber seats, 4 of 81 Senate seats and no governorships. Cardoso is honorary president; Aécio Neves has been president as of November 2025.

Positions

Wikipedia says the party began on the centre-left and moved right in the 1990s, embracing neoliberal policy and the Third Way under Cardoso. Its platform names democracy as a fundamental value and rejects populism and authoritarianism, while critics cited by the article say it has come to be dominated by conservative and religious discourse and market fundamentalism.

Summarised automatically from the linked sources. Wikipedia