Musk calls out his enemies with 'Hitler meme' tweet

South African born Elon Musk has been the subject of an all-out assault by 'short-sellers' - stock market traders who have bet a lot of money that the share price of his Tesla company is heading for a fall.

So far they have been proved wrong and the share price has climbed, leaving the short-sellers out of pocket to the tune of billions of dollars.

Now Musk has used the old 'Hitler meme' to call them out: