Elon Musk, the billionaire CEO of Tesla and SpaceX, vowed to go to "war" to defend the H-1B visa program for foreign tech workers late on Friday amid a dispute between President-elect Donald Trump's longtime supporters and his most recently acquired backers from the tech industry.

However, after a user named Steve Mackey used Mr Musk's words to push the anti-H1-B rhetoric, the X boss stepped in with a flaming response. "The reason I'm in America along with so many critical people who built SpaceX, Tesla and hundreds of other companies that made America strong is because of H1B," wrote Mr Musk.

Elon Musk and Vivek Ramaswamy are calling for the U.S. to admit more foreign tech workers. Not all Republicans agree with them.

The backlash heightened on the tech billionaire's social media platform X within the last week as Ramaswamy and Musk have faced scrutiny from some in the GOP, including far-right activist Laura Loomer and other hardline anti-immigration Republicans.

Tensions have risen within Trump’s MAGA movement over immigration policy, with Elon Musk and Vivek Ramaswamy clashing with Trump supporters. The controversy sparked after the appointment of Sriram Krishnan as an AI adviser,