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Marcelo Castro (MDB) was elected senator for Piauí in 2026, with 1,307,833 votes, according to the final results from Brazil's Superior Electoral Court (TSE). Marcelo Castro (Marcelo Costa e Castro) ran in 11 elections between 1978 and 2026, for senator, federal deputy and state deputy. He was elected 10 times: senator in 2026 and 2018; federal deputy in 2014, 2010, 2006, 2002 and 1998; state deputy in 1990, 1986 and 1982. The highest vote was in 2026, for senator for PI: 1,307,833 votes. In the Federal Senate, had R$ 362.6 million committed in 64 individual amendments to the 2017 to 2026 budgets, to 234 municipalities; 96% has already been paid, counting carried-over payables. In the 2026 campaign for senator for PI, reported R$ 3.3 million in income: R$ 3 million from the Electoral Fund (FEFC), R$ 236 thousand de outras campanhas, R$ 53 thousand from private donations (7 donors) and R$ 45 thousand from own funds. Contracted spending totals R$ 2.7 million, mainly on advertising with printed materials (R$ 745 thousand), production of radio, television or video programs (R$ 550 thousand) and content boosting (R$ 430 thousand). Partial amounts, according to the TSE data of 14/10/2026: the campaign finance report for this election is still in progress. In previous campaigns, already closed, reported contracted spending of R$ 1.7 million in 2018 and R$ 606 thousand in 2014.
See donors, suppliers and detailed spending of the campaign ›
The votes of Marcelo Costa e Castro in each election they ran in, from oldest to most recent. All on the same scale (the highest vote recorded); the color shows the office.
The longest bar (the one that goes all the way) is the highest vote recorded for any office, elected or not; it works as a ruler, and all the other bars are proportional to it (the longer the bar, the more votes). What shows whether the person was elected is the fill, not the length: filled (colored) bar = elected; only the dashed outline = not elected; "to the runoff" = went to the runoff. From oldest (top) to newest. Click a bar to see the result of that election. The campaign finance report of each candidacy is in the list below.
Marcelo Castro reported income and spending to the TSE in 5 campaigns: federal deputy for Piauí in 2006, 2010 and 2014, and senator for Piauí in 2018 and 2026. The amounts are those of the time of each campaign, not adjusted for inflation. In the most recent campaign, in 2026, reported R$ 3.3 million in income: R$ 3 million from the Electoral Fund (FEFC), R$ 236 thousand de outras campanhas, R$ 53 thousand from private donations (7 donors) and R$ 45 thousand from own funds. Contracted spending totals R$ 2.7 million, mainly on advertising with printed materials (R$ 745 thousand) and production of radio, television or video programs (R$ 550 thousand); R$ 2.7 million has already been paid. In 2018, R$ 1.7 million in committed spending; in 2014, 42% of the R$ 606 thousand in committed spending went to advertising with printed materials. 2026 amounts are partial, according to the TSE data of 14/10/2026.
Fundraising, where the money came from:
Source: campaign finance reports filed with the TSE (open data). Radar do Voto has these data from 2006 on in general elections and from 2008 on in municipal elections; earlier campaigns do not appear. 2026: partial amounts, according to the TSE data of 14/10/2026; 2018: TSE data of 13/09/2026. Contracted spending is the total of the expenses the campaign reported; paid is the part already settled (the TSE only publishes the paid amount from 2018 on). The spending categories are the TSE's; the detail by supplier is in the dashboard. Corporate donations have been prohibited since 2015.
In the Federal Senate, Marcelo Castro had R$ 362.6 million committed (amount pledged by the government) in 64 individual amendments to the 2017 to 2026 budgets, to 234 municipalities. R$ 347.1 million (96%) has already been paid, counting carried-over payables. The area that received the most in the 2023 a 2026 legislative term was Saúde (50%). The cities that received the most in the 2023 a 2026 legislative term were Teresina, Anísio de Abreu and Belém do Piauí. By legislative term: in the 2023 a 2026 legislative term, R$ 211 million in 21 amendments; in the 2019 a 2022 legislative term, R$ 109.4 million in 30 amendments; in the 2015 a 2018 legislative term, R$ 42.2 million in 13 amendments.2
| Budget | Committed | Paid | % paid | Amendments | Municipalities |
|---|---|---|---|---|---|
| 2026 | R$ 72.8 million | R$ 63.8 million | 88% | 5 | 152 |
| 2025 | R$ 68.4 million | R$ 67 million | 98% | 9 | 175 |
| 2024 | R$ 69.6 million | R$ 69 million | 99% | 7 | 73 |
| Legislative term 2023 a 2026 | R$ 210.8 million | R$ 199.8 million | 95% | 21 | 209 |
Areas that received the most (2023 a 2026)
Municipalities that received the most (2023 a 2026)
Source: Transparency Portal (CGU), organized by Radar do Voto, collected at the source in Oct 2026. Only individual amendments, including special transfers (the "Pix amendments"); the amount is the committed amount, and paid includes carried-over payables. Caucus, committee and rapporteur amendments, which do not have a single author, are in the dashboard.
See all amendments in the Amendments Radar ›
Disclaimer. Information for reference only, organized by Radar do Voto from public data. It does not replace checking the original source: the Transparency Portal (CGU) and the Federal Senate website. Radar do Voto is not responsible for decisions made based only on this information. ↩
Analysis generated with AI. The summary and analysis texts in this section were generated with the help of artificial intelligence from these data and may contain inaccuracies. When in doubt, the numbers from the original source prevail. ↩
May be out of date. Committed and paid amounts change during the year, and this section may not reflect the most recent publication from the source. Data updated on 10/14/2026, collected at the source in Oct 2026. ↩
This person's history at the polls, from the most recent candidacy to the oldest.
Senator · 2026ELECTED1,307,833GPI · 76 years · White · Higher education, complete · Senador · MDB · no. 151 · see full resultcampaign finance report
Senator · 2018ELECTED812,213GPI · 68 years · White · Higher education, complete · Deputado · MDB · no. 151 · see full result
Federal Deputy · 2014ELECTED111,132GPI · 64 years · White · Higher education, complete · Deputado · PMDB · no. 1515 · see full result
Federal Deputy · 2010ELECTED171,697GPI · 60 years · Higher education, complete · Deputado · PMDB · no. 1515 · see full resultG é Eleição Geral: presidente, governador, senador e deputados. L é Eleição Local (municipal): prefeito e vereador. De 1933 a 1990 o TSE não publica cargo municipal, então esses anos são todos G.
A candidacy without votes is a registration that did not reach the ballot: according to the TSE data, a registration not approved, a withdrawal, or a running mate, who does not receive individual votes.
The race or color is the one the person declared to the TSE in the registration of each candidacy. The Court started collecting this information in 2014; that is why it does not appear in earlier candidacies.
