U.S. federal prosecutors have opened preliminary criminal investigations into Colombian President Gustavo Petro over alleged links to drug traffickers and possible illicit financing of his 2022 campaign, according to a report by The New York Times.

The previously undisclosed probes are being conducted by federal prosecutors in Manhattan and Brooklyn and involve specialists in international narcotics trafficking, as well as agents from the Drug Enforcement Administration and Homeland Security Investigations, the newspaper said, citing people familiar with the matter.

Investigators are examining, among other issues, whether Petro held meetings with individuals connected to drug trafficking networks and whether his presidential campaign solicited or received donations from such actors. The two investigations are being carried out independently and remain in their early stages, with no certainty that they will lead to formal criminal charges.

There is no indication that the White House played any role in launching the investigations, according to the report. However, the inquiries emerge in a broader context of heightened tensions and fluctuating diplomacy between Bogotá and Washington.

Relations between Petro and U.S. President Donald Trump have been volatile, marked by sharp public exchanges, threats of tariffs that were never implemented, and the temporary revocation of Petro’s U.S. visa. Trump has repeatedly accused Petro of failing to curb narcotics production and has described him in highly critical terms, while Petro has denounced what he characterises as political pressure and interference.

The U.S. Treasury Department last year imposed sanctions on Petro, members of his family and senior officials, including Interior Minister Armando Benedetti, alleging links to narcotics activity. The measures, which included asset freezes and travel restrictions, were justified by Washington on the grounds that cocaine production in Colombia had reached record levels and that the government had offered concessions to armed groups involved in trafficking.

Petro has rejected those claims, insisting that his administration has strengthened seizures of cocaine and slowed the rate of expansion of coca cultivation. He has also denied any knowledge of illicit funds entering his campaign, dismissing the allegations as politically motivated attacks.

Colombia’s Attorney General  is examining charges that Petro’s son – Nicolás Petro – received money from individuals linked to illicit activities during the 2022 campaign. While his son acknowledged receiving funds that were not reported, no criminal charges have been filed against the president himself, and Petro has maintained he was unaware of the campaign “donations”.

According to the NYT, the U.S. investigations are taking place amid a broader strategy in which Washington has increasingly used legal and judicial tools to advance foreign policy objectives. Analysts say such actions could serve as leverage in bilateral relations or influence political dynamics in allied countries.

The timing of the probes is particularly sensitive, as Colombia prepares for presidential elections on May 31, with a potential runoff in June. Petro, the country’s first leftist president, is constitutionally barred from seeking re-election but has actively backed his political successor with hardleftist Iván Cepeda.

The allegations could reverberate through the electoral campaign, where relations with the United States remain a central issue. Candidates on the right have emphasised the importance of maintaining close ties with Washington, while figures on the left have framed U.S. actions as a challenge to Colombia’s sovereignty.

Despite months of tensions, diplomatic relations between the two countries have shown signs of stabilisation in recent weeks. Petro and Trump held a bilateral meeting at the White House earlier this year, which both sides described as constructive, and officials have since sought to rebuild communication channels.

Even so, uncertainty persists over the trajectory of the relationship, particularly as Washington continues to prioritise counternarcotics cooperation with Colombia, historically one of its closest partners in the region.

Petro has consistently denied any links to drug trafficking and has pointed to his government’s security strategy, which includes negotiations with armed groups and efforts to reduce violence, as evidence of a broader approach to the drug trade.

The start of U.S. investigations add a new layer of complexity to an already fraught political and diplomatic landscape, with potential implications not only for Petro’s post-presidential future but for Colombia’s ties with its most important security ally.

The charge adds to a separate investigation over alleged violations of campaign finance limits during President Gustavo Petro’s 2022 presidential campaign

Colombia’s Attorney General’s Office (Fiscalía General de la Nación – FGN) charged the president of the country’s state-controlled oil and energy company Ecopetrol (NYSE: EC’, BVC: ECOPETROL), Ricardo Roa Barragán, with the alleged crime of influence peddling by a public official. The charge was formally presented on March 11 during a public hearing.

According to the prosecutors press release, Roa “ordered that a specific person be assigned to a gasification project in exchange for a reduction in the price of an apartment” located in northern Bogotá. The Attorney General’s Office said the alleged intervention was related to the executive’s interest in acquiring the property below market value.

During the hearing, a prosecutor from the Specialized Anti-Corruption Directorate formally presented the charge. However, Roa did not accept the accusation.

The newspaper El Colombiano explained that “the filing of charges is a formal act within the criminal process through which the person under investigation is officially notified of their link to a judicial case and the facts attributed to them. However, this step does not imply a conviction or a final decision and maintains the presumption of innocence that protects the executive.”

After the judicial decision became public, Ecopetrol’s Board of Directors said Roa will remain in his position as president of the company. In a public statement, the company’s highest governing body said it respects “Ricardo Roa’s presumption of innocence and his right to due process.” It also said it will continue acting according to the company’s established protocols for evaluating this type of situation.

Roa pled innocent to the influence trafficking charges.

Context: political, legal, and corporate challenges

Ecopetrol is currently facing several political and economic challenges. These include judicial and disciplinary proceedings involving its president, as well as questions about the company’s institutional and financial stability.

For example, the company’s 2025 annual report sparked public debate after reporting the highest reserve replacement ratio in the last four years (121%). According to the document, “300 million barrels of oil equivalent (BOE) were added, guaranteeing an average reserve life of 7.8 years.”

The report also said, “net proven reserves reached 1.944 billion barrels of oil equivalent.” However, private firms such as the independent investment bank BTG Pactual questioned those figures due to a change in the methodology used to calculate them.

Another point of debate has been the presidency of the Board of Directors, currently headed by Ángela María Robledo Gómez, a psychologist and former member of Colombia’s House of Representatives for Bogotá. Robledo was a member of the Partido Alianza Verde between 2010 and 2018 and later ran as vice presidential candidate alongside Gustavo Petro in the 2018 elections.

Roa’s legal situation is also linked to another investigation related to alleged irregularities in the financing of the Pacto Histórico presidential campaign in 2022, which he managed and which resulted in Petro becoming president.

In February, the Attorney General’s Office said investigators had found evidence suggesting that the campaign exceeded the legal spending limits. A similar case had already been examined by Colombia’s elections regulator Consejo Nacional Electoral, which fined those responsible more than $5 billion Colombian pesos (over $1.4 million USD).

For his part, Colombian President Gustavo Petro has publicly defended Roa. During a public event broadcast by media outlets such as Blue Radio, the president said the accusations are politically motivated. “We did not exceed spending limits; I have reviewed that accounting up and down,” he said. He also argued that the opening of criminal proceedings could be interpreted as an attempt to politically target his government.

Headline photo: Colombian President Gustavo petro (left) with former campaign manager and current Ecopetrol CEO Ricardo Roa (photo courtesy Ecopetrol).