Billionaire's estranged daughter has used rival social media platforms to attack Trump's anti-transgender executive order, and her dad's salute.

Elon Musk has cast doubt on Donald Trump’s $500 billion AI project by questioning whether it has enough financial backing. “They don’t actually have the money,” the MAGA billionaire wrote on X in a rare public dig at Trump just hours after the president made a big announcement about the privately funded initiative.

US President Donald Trump on Tuesday said he would be supportive of the world's richest man and his close aide, Elon Musk, buying TikTok "if he wanted to". Trump was asked if he would be open to the billionaire founder of Tesla buying the short-video platform facing a nationwide ban in the US after the Supreme Court last week upheld a law requiring TikTok to sever ties with its Chinese parent ByteDance.