The world's richest man went on a social media tirade against the Open AI chief executive for his former stance on Donald Trump.

President Trump sounded a lot of populist notes on the campaign trail. But as he took the oath of office for the second time, ...

A closer look at OpenAI CEO Sam Altman after President Trump announces a multi-billion dollar joint venture between Altman's ...

Elon Musk blasted OpenAI, accusing it of not having enough cash for Donald Trump's "Stargate" project. CEO Sam Altman has ...

Elon Musk and Sam Altman traded barbs on social media Wednesday after the OpenAI boss took center stage at the White House to ...

The Stargate project has big implications for U.S. AI leadership, but also for who's winning the new president's ear.

Trump's inauguration drew several business and tech CEOs, including Jeff Bezos, Mark Zuckerberg, Elon Musk, Tim Cook, and ...

From the friendships he has formed, to the public's perception of the MAGA leader, much has changed since Trump last took the ...

The inauguration guestlist features unlikely names including MMA fighter Conor McGregor and influencer Jake Paul.

ABC News has live coverage of the inauguration of President Trump beginning at 6 a.m. until approximately 11 p.m.

Miriam Adelson, widow of billionaire casino magnate Sheldon Adelson, who gave $5 million to Trump's first inauguration, is ...