A political realignment is under way across South America. Countries that spent much of the past decade governed by left-leaning administrations are now electing candidates who campaign on order, security and national sovereignty. The shift is not confined to a single country or a single election cycle. It is showing up in polling data, campaign rhetoric and, increasingly, in the composition of national governments across the continent.

The pattern is not accidental. Conservative candidates across the region have converged on a similar set of themes, borrowing heavily from the playbook used by populist movements in the United States in recent years. Nationalist language features prominently, often framed around restoring pride in domestic institutions and pushing back against what candidates describe as failed experiments with left-wing governance. Immigration has become a central issue in several campaigns, with candidates promising tighter border controls and stricter enforcement against undocumented migration. Law and order sits alongside these themes, with promises of expanded police powers and tougher sentencing forming a consistent thread through recent campaigns.

These parallels with American populism are not incidental. Campaign strategists in several South American countries have studied the messaging techniques used in recent US elections, adapting them to local conditions while keeping the core formula intact. The result is a recognisable style of politics that prizes clarity and toughness over nuance, and that positions the candidate as a figure capable of restoring control after years of perceived drift.

Peru offers the clearest recent illustration of this trend. Keiko Fujimori, leader of the conservative Popular Force party, was declared the winner of the country's presidential runoff after a prolonged vote count that concluded in late June. She defeated Roberto Sánchez of the left-leaning Together for Peru party by a margin of roughly fifty thousand votes, one of the narrowest results in a string of tightly contested Peruvian elections. It was her fourth attempt at the presidency, after three previous defeats in runoff votes.

Fujimori's campaign leaned heavily on the record of her father, former president Alberto Fujimori, whose government pursued an aggressive campaign against domestic terrorism during the 1990s. She positioned herself as the candidate best placed to confront rising crime, framing the contest in stark terms. At a debate held in May, she told voters the country faced a choice between order and chaos, arguing that Peru could either act decisively now or repeat the failures of recent years. That message resonated with an electorate that had grown weary of instability, having seen four presidents cycle through office since 2021.

Crime sat at the centre of voter concerns throughout the campaign, and for good reason. Extortion offences in Peru rose sharply between 2023 and 2025, with criminal gangs targeting schools, small businesses and transport workers. Homicide rates climbed over roughly the same period, and a significant share of the population reported personal experience of extortion or knowing someone affected by it. Hundreds of schools faced threats serious enough to force closures. Against that backdrop, promises of tougher policing carried obvious appeal, even among voters who had previously supported Fujimori's opponents.

Dissatisfaction with incumbent left-wing governance runs deeper than crime alone. Voters across the region have grown frustrated with economic stagnation, weak institutions and a sense that previous administrations failed to deliver on promises of reform. Conservative candidates have been quick to capitalise on this mood, presenting themselves as a clean break from governments they characterise as ineffective or corrupt.

What this means for the region's governance remains an open question. Fujimori inherits a deeply divided country and a Congress shaped by her own party's history of confrontation with previous presidents. Whether hardline rhetoric on crime translates into effective policy, or whether it hardens existing divisions further, will become clearer as her government takes shape. Other South American states watching Peru's example may draw lessons of their own, for better or worse, as similar contests approach in the months ahead.

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