Elon Musk is clashing with OpenAI CEO Sam Altman over the Stargate artificial intelligence (AI) infrastructure project touted by President Donald Trump, the latest in a feud between the two tech billionaires that started on OpenAI’s board and is now testing Musk’s influence with the new president. Trump on Tuesday had talked up a joint venture investing up to $500bn through a new partnership formed by OpenAI, the...

The deployment is part of Trump’s executive action to declare a ‘national emergency’ at the US’s southern border. The United States military has started to send 1,500 active-duty troops to the country’s southern border with Mexico, as part of President Donald Trump’s long-promised crackdown on immigration. The White House confirmed the troop movement on Wednesday, though the full details of the order have yet to be released. Officials...

Firefighting aircraft and ground crews are battling fast-moving wildfire in the Castaic Lake area north of Los Angeles. A fast-moving wildfire broke out in the mountains north of Los Angeles and ripped through an estimated 21 square kilometres (8.1 square miles) of trees and brush leading to thousands of evacuation orders for local residents and sending an enormous plume of dark smoke into the sky. Firefighters said on...