Why Is the US Backing Milei with Billions and Trade Deals?

In September 2025, on the sidelines of the United Nations General Assembly in New York, Donald Trump and Treasury Secretary Scott Bessent met Argentina's president, Javier Milei. A day later, Bessent announced that Washington was working on a $20 billion currency swap line for Argentina's central bank. That announcement marked the start of a broader pattern of US backing Milei.

Trump has described Milei as his "favorite president," as reported by Al Jazeera in May 2026. But the support goes well beyond friendship. It includes direct financial intervention, a sweeping trade agreement and, more recently, a surprising willingness to talk about the Falkland Islands.

The short answer: The US backing Milei rests on two layers: a genuine personal and ideological bond between the two leaders, and a longer-term strategic interest in critical minerals, competition with China and the South Atlantic. The personal layer depends on who holds power in each country, while the strategic layer is the part analysts argue would outlast a change of leaders.

What Has US Backing Milei Actually Achieved?

The clearest evidence is financial. A currency swap is an arrangement in which two central banks exchange currencies, giving one of them access to dollars it would otherwise struggle to find. Argentina has chronic dollar shortages, so the tool matters. In October 2025, the US Treasury bought Argentine pesos directly and signed the agreement on October 20.

Bessent called Argentina the centerpiece of what he labeled an "Economic Monroe Doctrine," according to Reuters in October 2025. The original Monroe Doctrine, from 1823, warned outside powers to stay out of the Western Hemisphere. Treasury also said it was working with banks and funds on a separate $20 billion debt facility.

In practice, Argentina drew only $2.5 billion of the $20 billion. It repaid that amount in January 2026, using financing from an unnamed multilateral lender rather than the IMF. Bessent said US taxpayers earned a profit in the tens of millions of dollars.

Milei's party won Argentina's midterm elections on October 26, 2025, six days after the swap agreement was signed.

In February 2026, the two governments also signed a reciprocal trade and investment agreement. The US agreed to eliminate more than 1,600 tariffs on Argentine goods, and Argentina agreed to drop over 220 levies on US products. According to Argentina's Foreign Ministry, the quota for Argentine beef entering the US rises from 20,000 to 100,000 tons.

The text covers much more than tariffs. According to the Buenos Aires Herald, it lists 113 commitments by Argentina and ten by the US, in areas such as import licensing, product standards, digital trade and state-owned companies.

The agreement required approval from Argentina's Congress. Foreign Minister Pablo Quirno called it a "step towards a free trade agreement."

Is the Trump Milei Relationship About Friendship or Strategy?

The ideological case is easy to make. Milei openly models his politics on a global libertarian right, and Trump has praised his spending cuts. In Washington, Senator Elizabeth Warren questioned whether the swap amounted to a bailout.

Fabián Calle, an Argentine geopolitical analyst who openly favors closer ties with Washington, offers a different framing. He describes Trump's personal rapport with Milei as the "tree," and Washington's long-term interest in the South Atlantic as the "forest." In his view, the permanent bureaucracies at the State Department and the Pentagon would pursue that interest regardless of who is president.

Why Does China Make Argentina Strategically Useful to Washington?

China is the other piece of the puzzle. Beijing has its own $18 billion swap line with Argentina, according to Reuters, and has long been a major trading partner and lender.

Argentina also holds large reserves of lithium and copper, which are essential for batteries, electronics and the energy transition. The US-Argentina framework on critical minerals says it favors the US as a partner over "market-manipulating economies." The text does not name China, and Argentine Foreign Minister Pablo Quirno has denied that it targets Beijing.

Geography adds another layer. Calle points to the Strait of Magellan and the Drake Passage, the sea routes that link the Atlantic and Pacific at the tip of South America, as strategically valuable. He also argues that Antarctica will matter more as its environmental protections become open to review from 2048.

Is the US Changing Its Position on the Falkland Islands?

The Falkland Islands, known in Argentina as the Malvinas, are administered by the United Kingdom and claimed by Argentina. The US has long declined to take a side on sovereignty.

Reports in spring 2026 said the Pentagon had floated reviewing that neutrality amid US-UK tension over the Iran war. In early September, asked by a British outlet whether Washington would back London in a dispute with Argentina, Trump replied that he reviews every position. He also suggested the UK had not helped the US on Iran.

On September 3, Milei gave a national broadcast saying the US was reconsidering its position. He announced sanctions on companies in the Sea Lion offshore oil project, Rockhopper Exploration and Navitas Petroleum, and funding for a naval base in Tierra del Fuego.

In mid-September, speaking in Dublin, Trump said he could probably settle the dispute if he were called in. The UK reaffirmed its position, and no formal change in US policy has been announced.

What Could Weaken US Backing Milei?

The first risk is political friction in Washington. Democrats introduced a "No Argentina Bailout Act" in response to the swap, US farm groups objected, and no public conditions were disclosed. US midterm elections on November 3, 2026, could change how much scrutiny such support receives.

The second is Brazil, the region's largest economy, which votes on October 4 with a runoff on October 25 if needed. Early September Datafolha polling showed Lula ahead of Flávio Bolsonaro in the first round, but the race remained competitive. Calle argues that major powers tend to boost the second-largest country in a region to keep the largest in check, so Argentina would stay relevant even if Bolsonaro wins.

The third risk sits in Argentina itself. Support built on a successful reform program becomes harder to justify if that program stalls.

Which layer carries more weight may only become clear when the two pull apart, for instance under a different US administration or a different Argentine government. Until then, the US backing Milei is a test of how much foreign policy rests on a single relationship.

Frequently Asked Questions

What is the US Argentina swap line? It is a $20 billion facility between the US Treasury and Argentina's central bank, agreed in October 2025. Argentina drew $2.5 billion and repaid it in January 2026. Treasury said it made a profit in the tens of millions of dollars.

What does the US-Argentina trade agreement include? Signed in February 2026, it removes more than 1,600 US tariffs on Argentine goods and over 220 Argentine levies on US products. It also raises the preferential beef quota for Argentina from 20,000 to 100,000 tons, according to Argentina's Foreign Ministry. It needed approval from Argentina's Congress.

Is the US-Argentina trade deal aimed at China? The text says the US is a preferred partner for critical minerals over "market-manipulating economies," but it does not name China. Argentina's foreign minister said it does not target Beijing. Separately, China maintains an $18 billion swap line with Argentina, according to Reuters.

Will Brazil's 2026 election change how Washington treats Argentina? It could change the dynamic, since Brazil is the region's largest economy. Calle argues that Washington would keep Argentina close either way, to balance Brazil's weight. The vote is on October 4, with a runoff on October 25 if needed.