A storm is brewing in U.S.-Mexico relations, and its epicenter is the newly appointed U.S. ambassador: Ronald Johnson, a former Green Beret and CIA operative with deep ties to U.S. military interventions in Central America.

Johnson arrived in Mexico City on May 15 and presented his diplomatic credentials to President Claudia Sheinbaum on May 19, triggering alarm among activists, political observers, and civil society leaders on both sides of the border.

To many, Johnson’s appointment is not just a diplomatic formality—it’s a signal. “It’s a declaration of war, basically, on Mexico,” said Marco Castillo, co-executive director of Global Exchange, during a recent episode of the podcast WTF Is Going on in Latin America & the Caribbean. “It feels like one step before Trump attempts to set foot in Mexico.”

Johnson’s résumé reads like a blueprint for interventionism. In the 1980s, he worked with right-wing paramilitary groups in El Salvador and Panama. His associations include relationships with controversial U.S.-backed figures accused of human rights abuses during Reagan’s Central American “Dirty Wars.” During the first Trump administration, Johnson served as U.S. Ambassador to El Salvador (2019-2021), developing a close relationship with Salvadoran President Nayib Bukele.

“To those of us who worked in Central America in the 1980s, he’s a figure that’s never really gone away,” said WTF co-host and activist Teri Mattson. “This is a profound message Trump is sending to Mexico and the region.”

Johnson’s appointment is not just a personnel change—it’s a test of will, sovereignty, and solidarity.

Observers draw parallels between Johnson’s arrival and a larger arc of escalating U.S. hostility toward Mexico that began years ago. Mattson recalled a WTF episode from April 2022 titled “Challenging the U.S. Narrative on Mexico,” which chronicled rising anti-Mexico sentiment in U.S. media, including opposition to Mexican energy reforms and false claims tying cartels to U.S. military hardware sent to Ukraine.

“Johnson is not an aberration—he’s the culmination,” said Mattson. “He’s the endpoint of a continuum that began at least in 2021.”

The backlash intensified when it was revealed that even before receiving formal recognition as ambassador, Johnson dined with Eduardo Verástegui, the Mexican ultra-conservative and unofficial Trump envoy. Verástegui, President of CPAC Mexico, is known for his alignment with U.S. right-wing interests and has long tried to position himself as Trump’s proxy in Mexico.

“That’s not a coincidence. That’s a statement,” said Castillo. “This is not how you build a respectful relationship with your closest neighbor.”

Indeed, Johnson’s appointment seems designed to antagonize. Activists and analysts fear his presence will embolden right-wing actors within Mexico and destabilize efforts toward national sovereignty, particularly as the country approaches pivotal judicial elections.

Beyond ideology, Johnson’s arrival is seen as part of a broader geopolitical strategy. Mexico is now the United States’ top trading partner, eclipsing even China, and the stakes of the fourth quarter 2025 review of the U.S.-Mexico–Canada Agreement (USMCA or TMEC, as it’s known in Mexico) are higher than ever. Under the surface of trade talks lies a tug-of-war over energy sovereignty, technology patents, and labor rights.

“The U.S. has tried everything—sanctions, media campaigns, diplomatic pressure—to undermine Mexico’s progressive reforms,” said Alina Duarte, a journalist and activist who co-hosted the WTF episode. “But this ambassador is different. He’s not just a diplomat. He’s a weapon.”

In 2024 alone, U.S.-Mexico trade reached over $840 billion, with Mexican manufacturing playing a key role in the electric vehicle supply chain and artificial........

© Common Dreams