Pope Leo Calls for Argentina–Brazil Dialogue Amid Milei–Lula Tensions

Pope Leo XIV used his first public remarks in Buenos Aires to press President Javier Milei to keep channels open with Brazil, as disputes between the two countries deepen. His appeal put regional diplomacy at the center of a visit that also carries the weight of Pope Francis’s connection to Argentina.

“South America has, at difficult moments in its history, found ways to negotiate and reach understanding in order to overcome serious tensions,” Leo said Sunday evening beside Milei. Argentina, he added, should protect that habit of dialogue and help it produce results.

Brazil dispute sharpens the stakes

The timing is pointed. Milei has declined to recognize Luiz Inácio Lula da Silva’s upset election victory last month and helped Lula’s conservative challenger, Flávio Bolsonaro, leave Brazil for the United States through Argentina. Brazilian authorities have asked Argentina’s senior remaining envoy in the country to explain Milei’s role in Bolsonaro’s departure.

Milei had backed Bolsonaro well before the vote, appearing at the senator’s campaign launch and publicly supporting his bid for the presidency. Bolsonaro insulted Lula at the event, prompting diplomatic protests. Brazil later recalled its ambassador to Argentina for consultations and summoned Argentina’s envoy to deliver its objections.

Argentina’s ties with its largest trading partner have deteriorated even as Milei has strengthened relations with ideological allies elsewhere in the predominantly Catholic region. Lula’s return to the presidency for a fourth term has added another fault line to the relationship.

A carefully framed appeal

Leo’s language was closely watched for any direct or indirect rebuke of Milei’s policies. He spoke instead about the habits that sustain democratic life: listening, choosing words with care, working patiently toward agreement and treating political opponents as fellow citizens who share a future.

“Democracy is also strengthened by how we conduct ourselves in public life every day,” the Pope said, describing dialogue and respect across political differences as part of that work.

Milei called Leo’s address “a superlative lecture” and its messages “very valuable,” but told television station LN+ he would keep his own reaction private. He said political readings of his comments could pull the Pope into Argentina’s domestic disputes.

Integrity and regional security

The Pope also urged governments to coordinate against organised crime, corruption, and arms and drug trafficking. He linked that effort to the conduct of public officials, warning that corruption weakens citizens’ trust in institutions.

Both Milei and Bolsonaro have faced scrutiny at home. Bolsonaro is the subject of several criminal investigations in Brazil, including a multimillion-dollar money laundering probe. In Argentina, allegations of corruption have added pressure on Milei’s government; the latest case led to the departure of his chief of staff earlier this year.

Milei’s approval rating has also fallen. A September LatAm Pulse survey by AtlasIntel for Bloomberg News found that 39 percent of Argentines approved of his government, down from 43 percent at the start of the year.

A visit shaped by Francis’s legacy

Milei greeted Leo at the airport in central Buenos Aires before meeting him at the presidential palace, where the Pope also held talks with the president’s sister, Karina Milei. Relations between Milei’s libertarian government and Argentina’s Catholic Church have been strained, making Leo’s measured remarks especially consequential.

Many Argentines had hoped Pope Francis would return to his birthplace as pontiff, but he never made the trip amid the country’s deep political divide. Leo is not visiting Brazil on this journey. He will stay in Argentina until Wednesday, then travel to Peru for the longest and most personal leg of the trip.

“Today, as his successor in the Petrine ministry, I am in a sense making that journey in reverse,” Leo said, referring to Francis’s beginnings in Argentina and the path that connected his life to the wider Church. His visit leaves a clear regional message: diplomacy requires patience, and the relationship between Argentina and Brazil will test whether both governments are willing to practice it.