On July 30, 2025, U.S. President Donald Trump signed an executive order imposing additional tariffs on Brazilian goods, raising the total rate to 50 percent, with the measure taking effect on August 6. While officially framed as a response to currency manipulation and unfair trade, the deeper message was clear. The tariff signals not just economic retaliation, but a transnational backlash against Brazil’s emerging digital constitutionalism. At the heart of Brazil’s approach is a legal framework that treats platform governance as essential to democracy. The Supreme Federal Court (STF) has taken a leading role in countering disinformation, political extremism, and...