G148 minutes agoPolitics1 min readBrazil

Marcelo Castro is re-elected senator for Piauí in 2026

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In 2026, voters across the country chose two senators per state and the Federal District to renew 54 of the 81 seats in the Senate.
A doctor by training, Marcelo Castro was Minister of Health between 2015 and 2016, in the Dilma Rousseff government.
With this Sunday's victory, he will continue to represent Piauí in the Senate for another eight years.

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Why It Matters

Marcelo Castro was Minister of Health between 2015 and 2016, in the Dilma Rousseff government. In 2026, voters chose two senators per state and the Federal District to renew 54 of the 81 seats in the Senate.

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In 2026, voters across the country chose two senators per state and the Federal District to renew 54 of the 81 seats in the Senate. Therefore, each voter was able to vote for two different candidates.

A doctor by training, Marcelo Castro was Minister of Health between 2015 and 2016, in the Dilma Rousseff government. With this Sunday's victory, he will continue to represent Piauí in the Senate for another eight years.

Marcelo Castro and Júlio César competed for the Senate on the basis of governor Rafael Fonteles (PT). The candidacies were part of the alliance formed by PT, MDB, PSD and other government parties, which sought to win the two seats in dispute in the state. The ticket represented the main political group linked to the state government in the 2026 elections.

Open Questions

What will be Marcelo Castro's legislative agenda in the new term?
How will the governing alliance in Piauí position itself in the face of the state opposition?