“This state was started by men and women who braved the desert and the winters to build better lives for themselves and their families. They were tough and strong. You have good genes, you know that, right? Mr Trump said to supporters’ applause.
“You have good genes. A lot of it is about genes, don’t you think so? The racehorse theory you think was so different? You have good genes in Minnesota. “
Mr. Trump’s comments have been widely condemned as echoing the language of racist eugenics, who believe that the human race can be genetically improved through selective breeding.
“As a historian who has written on the Holocaust, I will say bluntly: it is indistinguishable from the Nazi rhetoric that led to the extermination of Jews, the disabled, LGBTQ, Roma and others Steve Silberman, renowned science writer who covered the Nazi treatment of people with autism, said on Twitter.
“This is America 2020. This is where the GOP took us.”
Eric Feigl-Ding, epidemiologist and senior researcher at the Federation of American Scientists, said Mr. Trump’s comments reflected “the eugenics of the master race.”
He added: “This is how the Holocaust began. Don’t ignore.
The US president has a long history of praising the role of genes in human abilities, and has repeatedly praised himself for his “great” and “winning” genes.
In 2016, Mr. Trump’s biographer revealed that Mr. Trump believed in the “racehorse theory” of genetics and that his father, Fred Trump, had taught his son that the family’s success was due to their genes.
“The family subscribes to a theory of human development on racehorses,” Michael D’Antonio told PBS.
“They believe that there are superior people and that if you combine the genes of a superior woman and a superior man, you have superior offspring. “
In undated video footage discovered by the Huffington Post, Mr. Trump, before becoming president, denied that “all men are created equal.”
“Well, that’s not true, because some are smart and some aren’t,” he says.
In separate footage, Mr Trump said: “I am proud to have this German blood. There is no doubt about it.