Technology tycoons Elon Musk and Sam Altman are poised to face off in a high-stakes trial revolving around the alleged betrayal, deceit and unbridled ambition that blurred the bickering billionaires' once-shared vision for the development of artificial intelligence. The trial, which began Monday with jury selection, centers on the 2015 birth of ChatGPT maker OpenAI as a nonprofit startup primarily funded by Musk before evolving into a capitalistic venture now valued at $852 billion. The civil lawsuit accuses Altman, OpenAI's CEO, of double-crossing Musk by straying from the company's founding mission to be an altruistic steward of the technology.

Elon Musk's space exploration company has filed preliminary paperwork to sell shares to the public, according to two sources familiar with the filing, a blockbuster offering that is likely to rank as the biggest ever and make its founder the world's first trillionaire. A SpaceX IPO promises to be one of the biggest Wall Street events of the year with several investment banks lining up to help raise tens of billions to fund Musk's ambitions to set up a base on the moon and possibly one day send a man to Mars. The sources spoke on anonymity because they were not authorized to talk publicly about the confidential registration.

President Donald Trump has commanded attention during his second term. From military interventions to controversial social media posts, the Republican has rewritten the presidency's role in a divided country. Trump's actions can spark diplomatic crises and stir public debate. Despite low approval ratings on issues including health care, Trump remains a dominant force, using social media to maintain his presence. Meanwhile, Democrats are also leveraging digital media to capture attention, with figures such as California Gov. Gavin Newsom and New York City Mayor Zohran Mamdani leading the charge.

Tesla lost its crown as the world's bestselling electric vehicle maker on Friday as a customer revolt over Elon Musk's right-wing politics, expiring U.S. tax breaks to buyers and stiff overseas competition pushed sales down for a second year in a row. Tesla said that it delivered 1.64 million vehicles in 2025, down 9% from a year ago. Chinese rival BYD, which sold 2.26 million vehicles last year, is now the biggest EV maker. For the fourth quarter, sales totaled 418,227, falling short of the 440,000 that analysts polled by FactSet expected. The sales total were hit hard by the expiration of a $7,500 tax credit that was phased out by the Trump administration at the end of September.

Federal regulators have opened yet another investigation into Tesla's so-called full-self driving technology after dozens of incidents in which the electric vehicle maker's cars ran red lights or drove on the wrong side of the road, sometimes crashing into other vehicles and endangering drivers. The National Highway Traffic Safety Administration said in a filing dated Tuesday that it has 58 incident reports of Tesla vehicles violating traffic safety laws while operating in full self-driving mode. In reports to regulators, many of the Tesla drivers said the cars gave them no warning about the unexpected behavior. The probe covers 2.9 million vehicles, essentially all Teslas equipped with full self-driving technology

Prime Minister Keir Starmer has condemned as dangerous comments by Elon Musk, who told an anti-immigration rally in London that violence is coming to Britain and urged people to fight back. The event organized by far-right campaigner Tommy Robinson saw violence by a minority of those attending with 26 police officers injured and 25 arrests. Starmer's spokesman said, "The U.K. is a fair, tolerant and decent country, so the last thing the British people want is dangerous and inflammatory language." Liberal Democrat leader Ed Davey urged Starmer to consider sanctions against Musk. Starmer has emphasized the importance of peaceful protest and condemned violence against police and intimidation based on background or skin color.

Tesla gave Elon Musk a stock grant of $29 billion on Monday as a reward for years of "transformative and unprecedented" growth despite a recent foray into right-wing politics that has hurt its sales, profits and its stock price. In giving its billionaire CEO 96 million in restricted shares, the electric car company noted that Musk hasn't been paid in years because his 2018 compensation package has been rejected by a Delaware court. Tesla on Monday called the grant a "first step, good faith" way of retaining Musk and keeping him focused, citing his leadership of SpaceX, xAI and other companies.Â