Despite having rarely left the president’s side over the preceding few months, Musk was blindsided by the announcement, according to people familiar with the matter.

On the first full day of the second Trump presidency, Elon Musk was in the White House complex when he got word that his ...

South Florida is a magnet for tech billionaires, with companies like Citadel, Nvidia and Tesla among those expanding in the ...

After helping President Trump get elected, Elon Musk was poised to dominate the country’s AI policies. Then Mr. Altman ...