Mexican President Claudia Sheinbaum has taken a notably firmer stance toward the United States, vowing to "defend Mexicans at every level" after a 15th Mexican citizen died in US immigration custody and tensions mounted over Washington's energy blockade on Cuba. The shift marks a significant, if measured, escalation from a leader who has spent more than a year carefully managing one of Latin America's most consequential bilateral relationships.
The latest death — that of 49-year-old Alejandro Cabrera Clemente, who died on Monday in an Immigration and Customs Enforcement (ICE) detention centre in Louisiana — prompted Mexico's government to declare the deaths "unacceptable" and the facilities "incompatible with human rights standards and the protection of life." At her Tuesday press briefing, Sheinbaum announced that she had requested formal investigations into all 15 deaths, instructed Mexican consulates to conduct daily visits to detention centres, and said her government would bring the cases before the Inter-American Commission on Human Rights — the principal human rights body of the Americas — while also considering an appeal to the United Nations. Her government has additionally pledged to support lawsuits filed by detained migrants over poor conditions inside US facilities. "There are many Mexicans whose only crime is not having papers," she said.
The second major flashpoint is Cuba. Solidarity with the Caribbean island has been a cornerstone of Mexican foreign policy since Fidel Castro and Che Guevara famously planned the Cuban revolution while in Mexico City, and it holds particular weight within Sheinbaum's left-wing Morena party. When the Trump administration threatened tariffs on any country shipping oil to Cuba in January, Mexico — a longstanding supplier — reluctantly paused those shipments, but Sheinbaum has continued to push back. She has called the US energy blockade "unjust," accused Washington of "suffocating" Cubans with sanctions, sent food aid, and even donated $1,000 of her own salary in a symbolic gesture of solidarity. Her decision to continue hosting Cuban doctors, despite US pressure that led other Central American and Caribbean nations to end similar programmes, drew veiled threats from Washington over potential visa restrictions. The White House offered no public comment on either issue on Tuesday.
Analysts describe Sheinbaum's shift as a calculated one. For over a year she has walked a careful line — cracking down on cartels more vigorously than her predecessors, shoring up trade ties ahead of renegotiations of the United States-Mexico-Canada Agreement (USMCA), and responding to provocations with what she has called a "cool head." That approach has helped Mexico avoid the tariffs and threatened military action that Trump has wielded against others in the region. But growing public disapproval of ICE operations within the United States — roughly six in ten American adults say Trump has "gone too far" in deploying federal immigration agents into cities, according to a recent AP-NORC poll — has given Sheinbaum more political room to raise concerns. Surging energy prices linked to the Iran conflict have also made Washington more dependent on Mexican supply, reducing US leverage in the short term.
"Sheinbaum's recently bolder tone suggests a calculation that her administration can push back on some politically important fronts as long as they are also making progress on trade and security," said Carin Zissis of the Council of the Americas. Former Mexican ambassador to the US Arturo Sarukhan offered a note of caution, however: Sheinbaum will need to avoid jeopardising the delicate groundwork her government has laid for USMCA talks. "What's going to be interesting going forward," he said, "is whether she can continue to have her cake and eat it too."