WASHINGTON — The European Commission levied a $1 billion fine against Google for anti-competitive practices in its ad tech business, the largest penalty against a U.S. technology firm this year. Regulators found that Google unfairly favored its own advertising exchange, stifling smaller competitors over the course of a two-year investigation. Alphabet Inc. shares dropped 1.5 percent, trading at $342.09 as investors weighed the financial hit and broader regulatory exposure.

President Trump is set to announce new tariffs tomorrow targeting a range of European goods, a move that marks a sharp escalation in trade tensions between Washington and Brussels. Administration sources said the duties will apply to specific sectors, including certain agricultural products and manufactured goods, aimed at pressuring Europe on digital services taxes and subsidies for European airlines.

The timing is no coincidence. Brussels has made regulating U.S. tech giants a central tool of digital sovereignty. Trump's White House, in turn, uses tariffs as leverage to extract trade concessions and protect domestic industries. The tit-for-tat risks real disruption for companies operating across both continents.

Lobbying intensified in Washington ahead of Trump's announcement. Trade groups representing U.S. farmers and manufacturers pushed for protection from what they call unfair European trade practices. American retailers and importers of European luxury goods warned against tariffs, citing higher consumer costs and supply chain disruptions. The U.S. Chamber of Commerce also argued against escalating trade barriers.

Domestic producers stand to gain from tariff protection, while consumers face higher prices. The Google fine hands European competitors an opening in the ad tech market and could invite U.S. scrutiny of European firms operating stateside.