President Donald Trump's relationship with tech billionaire Elon Musk is crumbling as the latter continues to step up his attacks on the president's "big, beautiful bill," reported the Wall Street Journal on Wednesday evening.

It’s no shock the ‘short-lived romance’ between Donald Trump and Elon Musk has come to a crashing end, according to an expert on US politics – it was all a question of ego. The US President and the world’s richest man formally brought their working relationship to a close last month in an Oval Office press conference.