Donald Trump really needs some lessons in British history.
The US business tycoon has duped into retweeting a picture of Fred and Rose West, the notorious serial killers.
Trump, who presents the US version of The Apprentice, was sent a photograph of the pair, along with the message: 'My parents who passed away always said you were a big inspiration. Can you please RT for their memory?'
His unfortunate gaffe has since been retweeted thousands of times. It was up for about 45 minutes before being taken down – and Trump has continued tweeting since, possibly in the hope that ignoring the prank will make it all go away.
The 68-year-old probably didn't realise how notorious the Wests were. The married couple killed most of their victims between 1973 and 1979.
The prank was orchestrated by Philip Bradbury, who describes himself as a 'drinker' and a 'failed comedian'. Given Trump has 2.7million followers, grabbing his attention is no mean feat.
Donald Trump is beginning to trend on Twitter, rather than the troll who orchestrated the practical joke. But @feckhead is still basking in a lot of glory – and can probably expect his modest following of 500 to grow substantially in the coming hours.
'Thoughts are with Donald at this hilariously difficult time,' one fan said.
Another added: 'You've been trumped, Donald.'