Often dubbed the “Trump of the Tropics” by international media outlets, Brazil’s President Jair Bolsonaro has always welcomed comparisons to his American counterpart. He has often aped Donald Trump’s rhetoric and demeanor, and has centered his entire foreign policy agenda around having a good relationship with the U.S. president.
In practical terms, that relationship has brought some results, such as a recent limited deal to facilitate trade (which had been discussed before Mr. Bolsonaro took office), Brazil’s anointment as a “major non-NATO ally,” support for Brazilian membership to the Organization for Economic Cooperation and Development (OECD), a technology...