Before turning 20, Rafael Fonteles, the recently re-elected governor of Piauí, had already won three international medals in chemistry and mathematics competitions, along with an honorable mention in physics. He completed his mathematics degree at the Federal University of Piauí in just two years and earned a master’s degree in mathematical economics from Brazil’s prestigious Institute for Pure and Applied Mathematics (IMPA) at 21. The son of a founding member of the Workers’ Party (PT) in Piauí, he became a teacher, education entrepreneur and investment consultant licensed by Brazil’s securities regulator, the CVM, before taking over the state’s Finance Department at 29. Now 41, he has been re-elected governor with 70.9% of the vote. His background has attracted the attention of investors caught off guard by President Luiz Inácio Lula da Silva’s victory on Sunday, who are now wondering whether Fonteles, one of the names floated for finance minister in Lula’s fourth term, would be willing to pursue fiscal consolidation.
His record in public office deserves a closer look. Fonteles served as Piauí’s finance secretary from 2015 to 2022 under Governor Wellington Dias, navigating Brazil’s recession under Dilma Rousseff, the fiscal crisis facing state governments during Michel Temer’s presidency, and the pandemic under Jair Bolsonaro. He helped contain spending, reorganize public finances and implement pension reform. Between 2018 and 2020, the state’s gross debt fell from 67.6% to 56.3% of net current revenue, according to the World Bank. Piauí recorded primary budget surpluses in 2020 and 2021, although its finances also benefited from federal pandemic relief, including emergency transfers and compensation for revenue losses under the federal revenue-sharing system. From 2019 to 2022, Fonteles chaired Comsefaz, the national council of state finance secretaries, gaining experience in negotiations over taxation, revenue distribution and state government financing.
But what actually changed in Piauí? Between 2015 and 2023, a period covering his tenure as finance secretary and his first year as governor, the state’s economy expanded by approximately 15% in real terms, driven by agribusiness, services and renewable energy. The poverty rate, which stood at 55.6% in 2012, fell to 37.3% in 2024, partly reflecting the impact of federal income-transfer programs. Yet Piauí remains one of Brazil’s poorest states. In 2023, its GDP per capita was R$24,700, less than half the national average. Economic growth has brought meaningful changes, but not enough to overcome the state’s deep-rooted inequalities.
Education offers particularly striking evidence of progress. Piauí’s state-run high school system ranked last in Brazil’s Basic Education Development Index (Ideb) in 2005. By 2025, it had climbed to second place nationally, scoring 4.9 on the index. Improvements spanned several administrations but accelerated in recent years. Under Fonteles, Piauí became Brazil’s leader in full-time public high school enrollment, with 81.46% of students in the state system attending full-day programs. His administration also expanded vocational education and introduced artificial intelligence into the curriculum. Expanding full-time education is likewise a priority in the platform on which Lula won re-election. The impact on productivity and incomes remains to be seen, but better education could become a structural driver of development in a low-income state.
As governor, Fonteles has also expanded private-sector participation in infrastructure. In 2024, his administration awarded a 35-year water and sanitation concession to Aegea, securing a R$1 billion upfront payment and commitments for R$9.6 billion in investment, building on the sanitation regulatory framework approved during Bolsonaro’s presidency. Fonteles also introduced rules to control spending and strengthen fiscal planning. There are, however, contradictions. Gross state debt climbed again, reaching 76.7% of net current revenue in 2024, according to the World Bank. High interest rates increased financing costs, but the deterioration also reflected higher current expenditure and public investment. Should Fonteles take over the Finance Ministry, the challenges would be of an entirely different magnitude: managing the finances of a much larger, more diverse and complex country, with rising public debt, expanding mandatory spending and an increasingly fragmented and polarized Congress.
Lula does not need to appoint Rafael Fonteles for his experience to matter to the national debate. Re-elected by a wide margin in Piauí with the backing of a coalition spanning the left, center and right, the governor belongs to a new generation of PT leaders combining technical expertise, business experience and political negotiating skills. Yet his record also raises a question that favorable fiscal indicators alone cannot answer: how can economic growth translate into prosperity for a population whose living standards remain far below those in much of the country? The medals Fonteles won in his youth showed an exceptional ability to solve complex problems. Piauí presented him with a far more difficult challenge: lifting more than a third of its population out of poverty. A move to Brasília would not bring that test to an end. It would simply make it a national one.
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