In November 2015, he tweeted a chart of bogus crime data from the fictional “Crime Statistics Bureau,” which wildly overstated how many white people were killed by black people. Charles Johnson, proprietor of the blog Little Green Footballs, traced the image to a Twitter user whose biographic information suggested that “we should have listened to the Austrian chap with the little moustache,” a reference to Adolf Hitler.

In January, Trump retweeted from @WhiteGenocideTM a meme of a destitute-looking former GOP presidential candidate Jeb Bush, and in February he passed on a comment about his rallies from the same source. @WhiteGenocideTM’s account lists its location as “Jewmerica.”

In April, Trump retweeted a compliment from an innocuous-looking follower named Jason Bergkamp; a reporter from Fusion quickly discovered that Bergkamp had also praised Hitler.