The US president approvingly quoted an opinion piece by which Pat Buchanan warned in opposition to a “multiracial, multiethnic, multicultural, multilingual America”.
Mr Buchanan, a former aide to Richard Nixon and Ronald Reagan, claimed Democrats opposed a wall on the US-Mexico border as a result of they needed “to extend the variety of girls, African-People, Asians and Hispanics, and thereby cut back the variety of white males”.
“The Democratic Celebration is hostile to white males, as a result of the smaller the share of the US inhabitants that white males turn out to be, the earlier that Democrats inherit the nationwide property,” he prompt.
In tweets posted late on Sunday night time, Mr Trump quoted a bit of the article by which Mr Buchanan wrote: “America’s southern border is ultimately going to be militarized and defended or america, as we have now recognized it, goes to stop to exist.”
The president added: “The good folks of our Nation demand correct Border Safety NOW!”
Footage quickly surfaced on social media of a 1999 interview with NBC Information by which Mr Trump attacked Mr Buchanan, who was vying in opposition to him for the Reform Celebration’s presidential nomination on the time.
Mr Trump informed Meet the Press host Tim Russert: “He’s a Hitler lover. I assume he’s an anti-Semite. He doesn’t just like the blacks, he doesn’t just like the gays.
“It’s simply unbelievable that anyone may embrace this man.”
About Mr Buchanan’s bid for the White Home, he added: “Possibly he’ll get 4 or 5 per cent of the vote, and it’ll be a very staunch proper wacko vote. I’m not even positive if it’s proper. It’s only a wacko vote. And I simply can’t think about that anyone can take him severely.”
Mr Buchanan has beforehand been accused of antisemitism and Holocaust denial. He wrote in a New York Put up column in 1990 that it might have been inconceivable for 850,000 Jews to be murdered by a diesel engine exhaust fed right into a fuel chamber on the Nazi dying camp in Treblinka.
The Anti-Defamation League has described Mr Buchanan as an “unrepentant bigot” with views “equivalent to these of self-declared white nationalists”.
Mr Trump’s embracing of the previous political rival he as soon as strongly denounced comes as he seeks to justify his demand for $5.6bn funding for the border wall, a key promise of his 2016 election marketing campaign.
The president’s rhetoric on the issue has hardened as his dispute with Democrats over the difficulty prolongs a authorities shutdown that at 24 days is now the longest in US historical past.
Ted Lieu, the Democrat Consultant for California, tweeted in response to Mr Trump’s newest posts: ”Hey @realDonaldTrump: Except you retract your tweet selling this racist Pat Buchanan article, very tough now for any Democrat to help your wall. Ever.”