US government seeks to join Elon Musk in challenge against EU's fine on X

The U.S. government formally sought to join Elon Musk's legal challenge against the European Union's €120 million ($136.51 million) fine imposed on social-media platform X. The intervention elevates a company-specific regulatory dispute into a potential U.S.-EU policy conflict, though the immediate financial penalty is modest relative to X's broader operating and legal risks.