Donald Trump has built his campaign on racism. He gained prominence within Republican circles for pushing the birther conspiracy which alleges that President Obama, the first African-American president, was not born in the United States. He began his campaign by proclaiming that Mexican immigrants were violent rapists and has never apologized for it.

Some have argued that Trump’s racist rhetoric is, just that, rhetoric. A tool to help him win the Republican nomination. Well, it certainly did help him. Republican voters flocked to the bombastic New York billionaire giving a record number of votes in the primaries. The fact that he is willing to use such rhetoric at all should disqualify him from the presidency, but there is evidence that Trump himself actually believes that certain people are superior.

A new PBS documentary, “The Choice,” reveals that Trump is a believer in eugenics. The documentary featured Michael D’Antonio, one of Trump’s biographies, who says the businessman’s father raised him with the belief that his family was genetically superior.

‘The family subscribes to a racehorse theory of human development. They believe that there are superior people and that if you put together the genes of a superior woman and a superior man, you get a superior offspring.’

Huffington Post has assembled a video showing clips of Trump making statements that could be be interpreted as supportive of the theory of eugenics. For those who don’t know, eugenics is the scientifically discredited belief that certain people are superior. Eugenics also encourages the breeding of “superior” people while mandating that “inferior” people be rendered sterile or executed.

As you’ve probably surmised, it was a rather popular theory in Nazi Germany. We can’t prove that Trump believes in eugenics and, if questioned on the topic, he’d likely deny it. However, we can prove that he has earned the support of many people who do believe in eugenics such as Neo-Nazis and members of the KKK.

Whether he truly believes in such theories or is simply a corrupt opportunist doesn’t really matter. Trump has shown that he is willing to ally himself with the worst of American society and that alone makes him unfit for office.

You can check out Huffington Post’s video below and, if you’re interested, check out “The Choice” here.

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