President Donald Trump on Monday warned he will impose “substantial additional tariffs” and restrict exports of advanced U.S. technology, including semiconductors, on any country that maintains digital taxes, legislation or regulations he deems discriminatory against American technology companies. In a Truth Social post dated Aug. 25, Trump said digital services taxes and related measures “are all designed to harm, or discriminate against, American Technology” and placed affected nations “on notice” to withdraw such rules. The threat broadens a parallel move against the European Union’s Digital Services Act, the bloc’s flagship online-content law. According to an exclusive Reuters report citing people familiar with the deliberations, the administration is considering visa sanctions on EU and member-state officials responsible for enforcing the DSA. The measures would mark an unusual escalation of U.S. pressure, extending beyond trade penalties to target individual policymakers. Many European countries, along with the EU itself, levy digital taxes or have passed laws tightening oversight of large platforms such as Alphabet, Meta, Apple and Amazon. Washington argues the policies unfairly single out U.S. firms; Brussels says they aim to curb illegal content and ensure fair taxation. Trump’s latest warning risks reviving trans-Atlantic trade tensions just months after the White House reached temporary tariff truces with several allies, underscoring the administration’s readiness to use both economic and personal sanctions to defend U.S. tech interests.