Businessman and physician Peter Lamelas, appointed by Donald Trump, finally arrived in Buenos Aires on Friday, October 31, 2025, to assume his post as the 53rd United States Ambassador to Argentina . His arrival marks the formalization of a bilateral "Milenio-Trump" axis of explicit alignment, backed by a $20 billion economic aid package and a geopolitical agenda focused on containing Chinese influence and promoting investment. However, his appointment, lacking diplomatic experience and based on his close relationship with the Republican magnate, raises serious questions, especially in light of his controversial stance on the Malvina Islands issue , a critical issue for our country.

Lamelas, co-founder of the medical company MD Now Urgent Care and a donor to Trump's campaign , embodies the Republican administration's policy of appointing staunch allies to key positions, prioritizing ideological affinity over professional experience . His appointment, confirmed by the U.S. Senate on September 18, cements a relationship that, as analysts point out, will increasingly operate through informal channels and personal trust, strengthened by his close rapport with President Javier Milei, whom he praised for his "commitment to economic freedom."

November 2024, the first meeting between President Milei and Trump's designated ambassador to Argentina.

The new ambassador's mission, as he stated in meetings, is to strengthen the strategic alliance to boost "unprecedented" US investment in Argentina and consolidate it as a "partner of choice" in the region, particularly in critical natural resource areas such as lithium. Lamelas has also openly expressed his intention to counter "adverse influences" such as those from China and Venezuela, in addition to his controversial support for the judiciary in legal proceedings against former President Cristina Fernández de Kirchner.

Lamelas' "neutrality" regarding the Malvinas

The most significant controversy surrounding Lamelas is his statement in the Senate regarding the Malvina Islands issue . The White House appointee affirmed that his country's position is "not to recognize the sovereignty of Argentina or the United Kingdom," citing a supposed neutrality.

This assertion is met with deep skepticism from sectors sympathetic to the national cause. As has been historically documented, the supposed impartiality of the United States was categorically refuted by the logistical, satellite intelligence, and military support provided to London during the 1982 war. This strategic alliance remains in effect, as demonstrated by joint military exercises in the South Atlantic and the consistent abstention of the United States from UN resolutions urging dialogue.

Lamelas's statement is interpreted as an "empty diplomatic gesture," intended to appease sensitivities in Buenos Aires without altering fundamental strategic support for its British ally. This calculated ambiguity raises doubts about the new ambassador's willingness or ability to address this crucial issue with the seriousness and historical understanding it deserves.

In short, Peter Lamelas 's arrival marks a milestone in bilateral relations: the consolidation of a political-economic axis with significant financial support . However, at the same time, it exposes Washington's contradictions in prioritizing political loyalty over experience, casting the shadow of an untenable historical "neutrality" over the crucial Malvinas/Malvinas issue, and maintaining a double standard that favors the United Kingdom.