
AI-generated summary
Elections for the Federal Senate in Mato Grosso do Sul follow the relative majority system, where the two candidates with the most votes win, without a second round.
Ten candidates are competing for two seats for the Senate in Mato Grosso do Sul in the 2026 elections. On October 4, voters need to enter the candidate number, made up of three digits, to decide the state's representatives. It is necessary to choose two different candidates — if the voter votes twice for the same person, the second vote is canceled.
See below the numbers of candidates for the Federal Senate for Mato Grosso do Sul, in alphabetical order and with the names displayed in the electronic ballot box.
Electoral glue: Fill in and print with your candidates’ data
In elections for the Senate, those who obtain the highest votes win. There is no second round. On October 4th, voters will also vote for state deputy, federal deputy, governor and president.
Search for your candidates: search here by name, state or party and access the profile and declaration of assets of each candidate for state deputy, federal deputy, senator, governor and president.
Electoral polls: see here the results of electoral polls released during the campaign.

A Quaest survey released shows Daniel Vilela, from MDB, with 57% of the valid votes for the government of Goiás, followed by Wilder Morais (PL) and Marconi Perillo (PSDB), both with 18% and technically tied within the margin of error. Luis Cesar Bueno (PT) has 5%.

President Lula (PT), aged 80, is contesting his seventh presidential election against Flávio Bolsonaro (PL) in a scenario of polarization and high rejection, with promises of change and attacks on his opponent linked to militias and former president Jair Bolsonaro, according to a Datafolha survey that shows a technical tie with a margin of error of two points.

Senator Flávio Bolsonaro reaches the first round of the elections technically tied with President Lula, after a campaign marked by right-wing articulations, political scandals and clashes with the STF.

Datafolha research shows Lula (PT) ahead among voters aged 16 to 24 and 60 and over, while Flávio Bolsonaro (PL) is technically tied with the president in the 25 to 59 age range. In the simulated second round, Lula has 47% and Flávio 46%, also in a technical tie.

Former governor of Goiás Ronaldo Caiado (PSD) ends his presidential campaign this Sunday (4) facing popularity challenges, after fluctuations in the polls and criticism of his performance in debates.

Eight candidates are competing for the government of Rio Grande do Norte in the 2026 elections, with voting in the first round scheduled for October 4th. To win in the first round, a candidate must obtain more than half of the valid votes. Otherwise, the two with the most votes will compete in the second round on October 25th. On this same day, voters will also vote for state deputy, federal deputy, senator and president.