11/08/2026

Brazil 2026: When Geopolitics Enters the Voting Booth

Brazil’s presidential election on October 4th will be much more than a contest for control of Latin America’s largest economy. Its outcome will shape much of the region’s political balance at a time when the Latin American map has been changing rapidly. Since 2023, thirteen of the last sixteen national elections have been won by different strands of the right. In South America, the left managed to retain only Uruguay, while Paraguay, Argentina, Ecuador, Bolivia, Chile, Peru, and Colombia shifted their political orientation.

However, it would be a mistake to interpret the Brazilian election solely as a new chapter in the confrontation between Lula’s movement and Bolsonaro’s. Brazil is entering a new political phase. Rather than a repeat of the polarization seen in 2018 or 2022, the 2026 campaign reflects a transformation of the political system marked by the fragmentation of the right, the growing autonomy of regional leaders, the return of the economy as the main axis of debate, and, above all, the internationalization of electoral competition.

Jair Bolsonaro’s absence from the race has profoundly changed the landscape. Although Flávio Bolsonaro has managed to establish himself as the main electoral heir to Bolsonarismo, he still faces difficulties in unifying the conservative bloc. The contest is no longer simply between the government and the opposition; it is also a struggle for the future leadership of the Brazilian right.

This fragmentation is compounded by another new development: the growing importance of territorial dynamics. Brazil has always been a complex federation, but in this election the weight of the states has taken on an unprecedented dimension. The decision by traditional parties to allow their local organizations to forge their own alliances is turning the presidential campaign into a collection of regional contests.

The agenda has also changed. After several electoral cycles dominated by cultural, religious, and identity-based disputes, the economy has once again taken center stage. Inflation, employment, growth, tax reform, the fiscal deficit, and public security are once more among Brazilians’ chief concerns. Lula is betting that the economic recovery and institutional stability will bolster his administration. The opposition is seeking to advance a program centered on fiscal adjustment, a smaller state, and a more liberal agenda.

But perhaps the main innovation of this election lies elsewhere. Brazilian politics is no longer unfolding exclusively within the country’s borders. As recently occurred in Argentina, Honduras, and Colombia, foreign policy has become part of the domestic electoral debate. The new tariffs announced by the Donald Trump administration, opposition leaders’ lobbying efforts in Washington, and statements made by Argentine President Javier Milei during his unofficial visit to Brazil have reshaped the national political agenda.

This phenomenon compels us to reconsider a longstanding premise of Latin American political science: the idea that presidential campaigns are fundamentally domestic processes. Today, the boundaries between domestic and international politics are becoming increasingly blurred, even reviving debates about tutelary democracies.

Paradoxically, the evidence available so far suggests that Trump and Milei’s indirect intervention has strengthened Lula’s political strategy more than Flávio Bolsonaro’s candidacy. Both episodes enabled the government to shift the discussion, at least in part, away from an assessment of the economy and toward terrain where it feels more comfortable: the defense of national sovereignty, Brazilian autonomy, and the legitimacy of democratic institutions.

Itamaraty’s response to Milei’s statements illustrates this logic. The Brazilian government avoided reducing the episode to a personal exchange between presidents and presented it instead as a matter of state. That narrative connects with a deeply rooted tradition in Brazilian foreign policy and strengthens one of Lula’s main assets: his international leadership.

In this regard, one need only consider how former conservative Uruguayan president Julio María Sanguinetti rejected Javier Milei’s criticism of Luiz Inácio Lula da Silva, stating that it “disregards the principle of non-intervention and offers a sorry spectacle within Mercosur.”

Naturally, that advantage is not guaranteed. If trade tensions with the United States ultimately affect employment, exports, or economic growth, the international dimension could quickly become a political liability for the government.

For this reason, the real challenge for those of us observing these processes is not simply to predict who will win the October 4 election. Brazil is ushering in a new form of political competition in Latin America, in which geopolitics has become an electoral variable. What happens there will not only determine the course of its democracy and the region’s political balance; it will also offer an indication of how strongly international factors will influence Latin American elections in the future.

Dolores Gandulfo is Secretary for International Relations and Integration at the Mercosur Parliament. She serves on the Latin American Advisory Council of the Institute for Integrated Transitions (IFIT) and is a member of the Network of Women Political Scientists and the Argentine Association for International Relations Studies (AERIA). She also teaches at the National University of San Martín, the National University of Tres de Febrero, and the University of Salvador.