Milei-Lula Feud: Argentina & Brazil in Diplomatic Standoff as Tensions Escalate Ahead of Region’s Biggest Election

BRASÍLIA — Argentina and Brazil are navigating their most serious diplomatic friction in years, after remarks by President Javier Milei at a Brazilian political event prompted Brazil’s government to recall its ambassador to Argentina for consultations.

The episode lands almost one month before Brazil’s October 4 presidential election, widely described as the most competitive and consequential the country has held in a generation, and one that will define South America in the years to come.

The Fuse

Milei traveled to São Paulo for Saturday’s Liberal Party convention formally nominating Flávio Bolsonaro — son of imprisoned former President Jair Bolsonaro — as its 2026 presidential candidate against incumbent Luiz Inácio Lula da Silva.

In his remarks, Milei referred to Lula, without naming him directly, as a “convict,” a “thief,” a “communist,” and warned of what he called a “Lula risk” for Brazil. He also referred to Brazilian Supreme Court Justice Alexandre de Moraes as “bald trash,” following a decision by de Moraes days earlier denying Milei’s request to visit Jair Bolsonaro, the ex-president of Brazil, who remains under house arrest.

Lula was convicted in 2017 on corruption and money laundering charges tied to Brazil’s sprawling “Lava Jato” (Car Wash) investigation, and served roughly a year and a half in prison before his release in 2019. In 2021 however, Brazil's Supreme Court annulled the convictions, ruling that presiding judge Sérgio Moro had been biased and improperly coordinated with prosecutors — a decision that restored Lula’s political rights and cleared the way for his 2022 presidential run against Jair Bolsonaro.

Brazil’s Foreign Ministry responded the following day by recalling its ambassador, Julio Bitelli, for consultations. A Brazilian diplomatic source told AFP the remarks were seen as insulting to “two branches of government, the Brazilian people, and Brazilian democracy.”

Milei’s office has not issued a formal apology or retraction, and Milei has previously said, in response to earlier criticism over comments about Lula, that he has “nothing to regret.”

The Visit Denial That Preceded the Remarks

The immediate backdrop to Milei’s comments was a specific, recent event. Jair Bolsonaro is serving a 27-year sentence for being convicted of charges of plotting a coup after his 2022 election loss to Lula and has been under house arrest in Brasília since March for health reasons. Justice de Moraes, who oversaw Bolsonaro’s conviction, placed him under additional restrictions after Bolsonaro breached the terms of his house arrest by writing a political endorsement letter for his son’s campaign, which Flávio then displayed publicly on social media.

As part of those additional restrictions, de Moraes barred Bolsonaro from receiving any “political-electoral” visits until after October’s election — which meant Milei’s planned visit to his self-described “friend” did not go forward.

Milei’s remarks in São Paulo followed directly from that denial.

A Separate Claim About a Coordinated Campaign

Later that same day, on Argentina’s Radio Mitre, Milei said Argentina was the target of a negative “campaign” that he said was financed by Brazil, Mexico, and the U.S. Democratic Party, describing them as “the progressive leaders who don’t want the ideas of freedom to work.” Milei did not provide evidence for the claim.

Part of what he appeared to be referencing was unrelated to any government position: international criticism of Argentina’s national soccer team following its World Cup final loss to Spain, a match that ended with the Argentine squad turning its back during the trophy ceremony and drew public criticism from Spain’s own coach and commentators for the national team’s post-match conduct.

Whether Milei intended to link that separate criticism to his broader claim about state-financed political opposition, or was citing it as one example among others, is not entirely clear from his remarks.

Part of a Longer-Running Dynamic

This is not the first friction point between the two leaders. During Milei’s first trip to Brazil as president in 2024, he skipped a Mercosur presidential summit where he would have met Lula, attending a Bolsonaro-aligned political rally instead, after previously describing Lula in public remarks as “corrupt,” “a communist,” and “a dinosaur.” Lula has in the past asked Milei for an apology over such comments; none has been issued.

Relations between the two governments have not been without moments of reciprocal accommodation, however: last year, an Argentine court approved a request from Lula to visit Milei’s domestic political rival, former President Cristina Fernández de Kirchner, who is under house arrest on a corruption conviction.

Brazil’s Election Landscape

The dispute unfolds as Brazil heads toward a closely watched election. Lula, 80, is seeking an unprecedented fourth presidential term. Jair Bolsonaro remains imprisoned and barred from holding political office, and has endorsed his son Flávio to run in his place.

Recent polling shows a competitive race: a Datafolha survey released July 24 showed Lula leading Flávio 48% to 43% in a runoff scenario, following months in which other polls showed the race essentially tied, or briefly favoring Flávio, before reporting connecting him to a banker under investigation and a public disagreement with his stepmother, Michelle Bolsonaro, appeared to affect his standing.

Under Brazil’s electoral system, a runoff on October 25 is considered likely if no candidate wins a first-round majority.

Both campaigns have sought to frame recent U.S. and international developments as relevant to the race. Lula’s government has pointed to this year’s U.S. tariffs on Brazilian goods and the designation of Brazilian organized crime groups as terrorist organizations as actions it argues were politically timed to benefit Flávio’s campaign — an interpretation roughly 47% of respondents agreed with in one Quaest poll, according to AS/COA’s tracking of the race.

Flávio’s campaign and allies, including Milei, have in turn framed Lula’s government as aligned with a broader regional and international left they argue poses a risk to Brazil’s direction. Both framings are contested by the opposing side, and the election’s outcome will likely be shaped by a range of domestic factors — including the economy, uncontrolled crime, and the unresolved standing of the Bolsonaro family’s political movement — well beyond this latest diplomatic episode.