It opens a new front in the transatlantic trade dispute, with Trump signaling he's willing to use tariffs to retaliate against European regulation of American tech giants.

The clash over U.S. tech giants is escalating.

The European Union has issued over $8 billion in fines against companies like Meta, Apple, Amazon and Google.

US President Donald Trump on Friday threatened to impose tariffs on the European Union and launch a probe after accusing the bloc of unfairly targeting American technology…