U.S. antitrust enforcers weighed in on Friday on Elon Musk's lawsuit seeking to block OpenAI's conversion to a public company, pointing out legal doctrines that support his claim that OpenAI and Microsoft engaged in anticompetitive practices.

OpenAI launched a for-profit subsidiary a year later in order to raise outside capital, including more than $13 billion so far from its biggest backer, Microsoft. However, the non-profit entity, along with employees and investors, currently owns that for-profit subsidiary.

A lawyer for billionaire Elon Musk has asked attorney generals in the states of California and Delaware to push OpenAI to auction a major stake in its business to decide fair value of its charitable asset during its corporate restructuring,

Like any good entrepreneur who found early success in one market, Elon Musk is now starting to expand to others. Yesterday, Musk—the entrepreneur turned Donald Trump megadonor—hosted a livestream on X with Alice Weidel,

Musk's escalating criticism and mocking of European leaders and governments, which he has done repeatedly via X, the social media platform he owns, has sparked a backlash from

Musk's Tesla stake rose by $111 billion — 65% — last year. All but $2 billion of Musk’s Tesla gain and about 98% of what other Tesla shareholders gained came after Election Day, when Musk began hanging out extensively with Donald Trump and started calling himself Trump’s “first buddy.