#TrumpVsMusk One of Washington's most significant alliances - between US President Donald Trump and Elon Musk, the world's richest man - has broken up in a very public spat.

In no equivocal terms, Trump told the media that he was very disappointed in the man whom he once authorised to slash federal funding.

They have now turned on each other, as a disagreement has ballooned into a war of words, writes our North American !