Donald Trump has tweeted a video of a Mexican immigrant boasting about killing police officers, claiming Democrats were responsible for allowing him into the US.
The video, which looks like an ad campaign video, shows twice-deported Mexican immigrant Luis Bracamontes laughing about killing two officers in California, and saying he wished he had killed more.
It is unclear who commissioned or made the video – but it can be seen on the president’s Twitter and Instagram page.
A dramatic caption comes up on the video saying “Illegal immigrant, Luis Bracamontes, killed our people! Democrats let him into our country. Democrats let him stay.”
It then moves onto clips of hundreds of migrants smashing through fences, with one telling Fox News – the president’s favourite channel – he wants to apply for a pardon in the US for attempted murder.
A caption then flashes up saying: “Who else would Democrats let in?
“President Donald J Trump and Republicans are making American safe again!”
Accompanying the video, Mr Trump, who gave no evidence for the claims, wrote: “It is outrageous what the Democrats are doing to our Country. Vote Republican now!”
Many people have come out to criticise the president for sharing the video.
“This ad, and your full approval of it, will condemn you and your bigoted legacy forever in the annals of Americas history books,” Al Cardenas, the Florida Republican Party’s former chairman, wrote on Twitter.
The clip is reminiscent of the famous 1988 Willie Horton campaign ad which was condemned as racist in its use against Democratic presidential candidate Michael Dukakis, who is Greek-American.
Mr Trump has pinned the video to the top of his Twitter timeline as he ramps up his anti-immigrant rhetoric ahead of the midterms next week.
Overnight on Thursday the president said the number of military troops deployed to the US-Mexico border could reach 15,000 to prevent about 3,000 Central American migrants entering the US.
On Monday he said he was sending 5,200 soldiers to the border as the caravan of migrants makes its way through Mexico from Honduras.
Mr Trump said the media is underestimating the size of a handful of caravans coming towards the US.
“You have caravans coming up that look a lot larger than it’s reported actually.
“I’m pretty good at estimating crowd size. And I’ll tell you they look a lot bigger than people would think,” he told ABC.
As the president campaigns to stop the Democrats taking over Congress he is focusing squarely on immigration, making declarations and promises.
He denied he was “fearmongering”, but his actions and rhetoric have brought that into question.
The president has also promised to end so-called catch-and-release policies by erecting tent cities to hold those crossing illegally into the US.
This week he claimed he could use an executive order to unilaterally end birthright citizenship for the children of non-US citizens.
On Wednesday night Mr Trump appeared at a rally in Fort Meyers, Florida, alongside Republican Ron DeSantis who attacked Democratic gubernatorial candidate Andrew Gillum.
The crowd shouted at the black candidate: “Lock him up.”
Daniel Smith, a political science professor at the University of Florida, told NBC News: “Race is at the centre of the gubernatorial election, there is no question about it.
“The race card is overt…We aren’t talking dog whistle racism, this is attack dog mode.”