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Partido Socialista Brasileiro (PSB)

Partido Socialista Brasileiro (PSB)

The Brazilian Socialist Party (PSB, Partido Socialista Brasileiro) was founded in 1947, banned by the military regime in 1965 and refounded in 1989.

Website
psb40.org.br
Political position

Centre-left · Where sources place the party
Wikipedia: centre-left (Brazilian Socialist Party)
Ideology: social democracy, social liberalism, progressivism

0%Probability · Brazil Senate Election 2026: Most Seats Won

Voting day
(3 days ago)

Wikipedia classes it as centre-left, with social democracy and social liberalism among its ideologies. João Henrique Campos is its president, and Vice President Geraldo Alckmin is a member.

History

The PSB was founded on 6 August 1947 from the Democratic Left faction of the National Democratic Union. The military regime abolished it in 1965 and it was refounded in 1989. Its best presidential result was 21.32% in 2014 with Marina Silva as candidate. In 2022 its member Geraldo Alckmin was elected Vice President alongside Lula.

Positions

Wikipedia classes the PSB as centre-left and lists social liberalism, social democracy and progressivism as its ideologies, noting that it historically embraced democratic socialism and Christian socialism. Some analysis describes it as now centrist. In 2019 it withdrew from the São Paulo Forum, denouncing support for Nicolás Maduro's government in Venezuela.

Summarised automatically from the linked sources. Wikipedia

  1. Partido Socialista Brasileiro (PSB) 0%
100%50%0%

Feb 2026Jun 2026Oct 2026

This market has closed. The figures above are its final state.

Brazil Senate Election 2026: Most Seats Won

OutcomeLeft – RightProbability
Partido Liberal (PL) ResolvedRight100%
Partido Democrático Trabalhista (PDT) ResolvedCentre-left0%
UNIÃO ResolvedCentre-right0%
Movimento Democrático Brasileiro (MDB) ResolvedCentre0%
PODEMOS ResolvedCentre-right0%
Partido dos Trabalhadores (PT) ResolvedCentre-left0%
Partido Social Democrático (PSD) ResolvedCentre0%
PP ResolvedCentre-right0%
REPUBLICANOS ResolvedRight0%
Partido da Social Democracia Brasileira (PSDB) ResolvedCentre-right0%
NOVO ResolvedFar right0%
Partido Socialista Brasileiro (PSB) ResolvedCentre-left0%

All 12 outcomes

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  3. Brazil Senate Election: Most Seats Held Partido Liberal (PL) Winner
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