What a Flávio Bolsonaro victory could mean for Brazil, the Amazon and Latin America

Brazil's presidential election has become much more than a contest between an ageing left-wing incumbent and the son of a former far-right president. A victory by Senator Flávio Bolsonaro on 25 October could reshape Brazil's economic policy, its approach to the Amazon, its relationship with the United States and China, and the balance of political forces across Latin America.

Flávio Bolsonaro, son of former president Jair Bolsonaro, unexpectedly finished first in the 4 October first round with 47.03% of the valid votes, narrowly ahead of President Luiz Inácio Lula da Silva's 45.16%. The result overturned expectations that Lula would lead the first round and has made Flávio the favourite heading into the runoff.

What Flávio is promising

Flávio Bolsonaro's economic agenda calls for a smaller state, tighter control of public spending and a new fiscal framework linked to Brazil's debt-to-GDP ratio. His campaign has pledged a fiscal adjustment of about 1.5% of GDP within 18 months, alongside spending cuts, privatisations and tax relief.

On crime, Flávio proposes designating major criminal factions as "narcoterrorist" organisations, expanding federal security spending, building maximum-security prisons and lowering the age of criminal responsibility. His programme also proposes limiting the Supreme Court's powers, including its original criminal jurisdiction over federal lawmakers and individual justices' ability to issue monocratic decisions.

He has also said he would seek amnesty for his father, Jair Bolsonaro, and others convicted over the January 2023 attacks on Brazil's government institutions.

Flávio has pledged to maintain social programmes such as Bolsa Família, while arguing that welfare should be accompanied by measures to help beneficiaries move into employment.

On the environment, he has promised to eliminate illegal deforestation by 2029. At the same time, his programme calls for expanded oil and gas production, the use of fracking and faster, more flexible environmental licensing. That raises questions about how the deforestation target would be reconciled with his broader development agenda.

Lula's alternative

Lula's platform is centred on expanding social protection and public services. His programme proposes maintaining the minimum-wage policy, replacing the six-day workweek with a 40-hour week without a pay cut and strengthening the public healthcare system. He also proposes creating a Ministry of Public Security.

On fiscal policy, Lula's approach is more gradual. His campaign has proposed a primary surplus target of 1.3% of GDP by 2030, while seeking to protect social programmes and raise taxes on higher earners.

Flávio's camp, by contrast, advocates a much faster adjustment, targeting roughly 1.5% of GDP within 18 months through spending cuts and a new debt-based fiscal rule.

Why has Lula lost so much support?

The striking point is that Lula is not presiding over an economic collapse. Brazil's economy grew 2% year-on-year in the second quarter of 2026, while unemployment stood at 5.3% in the June-August period.

His problem is therefore less about a single disastrous economic indicator and more about the gap between macroeconomic performance and voters' perception of their everyday lives.

Inflation, high interest rates, public debt, crime and household financial pressure have become central concerns. Brazil's gross public debt has risen to about 82.5% of GDP, while Lula faces criticism that his government has not done enough to control spending.

His personal approval has also weakened. A Datafolha poll shortly before the first round found that 49% disapproved of Lula, compared with 48% who approved, while 41% rated his government negatively and 35% positively.

There is another factor: voter disengagement. More than 33 million Brazilians, or 21.08% of the electorate, did not vote in the first round, the highest abstention rate in a presidential first round since 1998.

Both campaigns are now trying to mobilise those voters ahead of the runoff. Reuters reported that Lula's campaign is treating the unusually high abstention largely as a sign of apathy rather than outright opposition to the president.

The Amazon question

The environmental consequences of a Flávio victory could be significant.

Under Lula, Amazon deforestation has fallen sharply. Annual deforestation recorded by Brazil's National Institute for Space Research (INPE) fell to 5,731 sq km in 2025, down 12.07% from 2024 and less than half the 11,594 sq km recorded in 2022.

More recent DETER satellite-alert data showed 2,874 sq km of deforestation alerts between August 2025 and July 2026, a 36.9% decline from the previous 12-month period and the lowest level in the system's historical series.

Flávio says he would eliminate illegal deforestation by 2029, but his environmental agenda places greater emphasis on streamlining regulation and facilitating economic activity. His programme calls for faster environmental licensing, while he has campaigned for greater scope for farming, cattle ranching and mining in the Amazon.

Lula, by contrast, has set a target of zero net deforestation by 2030 and restored environmental enforcement measures weakened during Jair Bolsonaro's presidency.

That does not necessarily mean a return to Jair Bolsonaro-era deforestation levels. But a weakening of environmental enforcement could leave the Amazon more exposed to pressure from agriculture, mining and other development interests.

What it would mean for Latin America

A Flávio victory would further reinforce the rightward shift already visible across Latin America. Argentina's President Javier Milei has openly backed his candidacy.

More importantly, Brazil could move closer to Washington under US President Donald Trump. Flávio has said he would seek to join Trump's "Shield of the Americas" security initiative, which Lula has declined to join.

He has also indicated that he would reassess Brazil's membership of BRICS and called for a bilateral free-trade agreement with the United States.

That could have major implications for China. China is Brazil's largest trading partner, accounting for more than 30% of its exports, with soybeans, oil and iron ore among the key commodities shipped to the Chinese market.

Flávio has said he would maintain an economically pragmatic relationship with Beijing, but his stronger alignment with Washington could mean less strategic engagement with China and greater scrutiny of Chinese involvement in sensitive sectors.

In short, a Flávio Bolsonaro presidency would not simply be Jair Bolsonaro 2.0. Flávio has presented himself as more willing to negotiate with other parties, and he would enter office with a significantly stronger congressional base than his father had.

But his victory could still mark a major shift in Brazil's direction, economically towards tighter government spending, internationally towards closer ties with Washington, and environmentally towards a more development-oriented approach to the Amazon.

For Latin America, the bigger question would be whether Brazil, the region's largest economy and most influential diplomatic power, becomes another major pillar of a US-aligned conservative bloc.