The escalating war of words this week between President Donald Trump and tech mogul Elon Musk marked the most contentious chapter in a yearslong and at-times rocky relationship between two of the most influential figures in business and politics.

But Mr. Trump’s warnings to his former ally are backed by several ways the White House could punish the world’s richest man.

The spectacular public feud last week between Elon Musk and President Donald Trump has laid bare how much Musk may lose if their rocky relationship continues to unravel.

Shares of Musk’s electric vehicle maker Tesla fell 14%, knocking about $150 billion off the company’s market valuation.

Elon Musk and Donald Trump appear to be edging toward reconciliation after their very public fiery fallout last week. Amid the Los Angeles immigration protests, the tech billionaire has deleted harsh criticisms,

The political bromance that helped elect Donald Trump came crashing down spectacularly in early June, only to be hastily rebuilt just days later. The dramatic Trump-Musk arc from alliance to all-out war to grudging reconciliation,

"I don't know why," Trump now says of the shift in energy Meredith Kile ... Kevin Dietsch/Getty While Donald Trump's working relationship with Elon Musk seems to have soured in recent weeks ...

Donald Trump Says 'Won’t Speak To' Elon Musk, Alleges He's 'Lost His Mind' | USA News A major fallout has erupted between former US President Donald Trump and tech billionaire Elon Musk. Trump, in recent remarks,

Isaacman is a friend of Musk, and his online payment company, Shift 4, has financial ties to SpaceX. On Thursday, Trump suggested he didn't think the relationship "was appropriate." He noted that ...