U.S. Republican presidential candidate and businessman Donald Trump has often shared images his Twitter followers post. Pictured: Trump speaks at a campaign rally at the South Point Resort and Casino in Las Vegas, Jan. 21, 2016. Reuters/David Becker

Republican presidential front-runner Donald Trump is known for his attacks on rival candidates, and has taken to sharing unconventional images or attack ads on social media in the past few months. But the New York businessman reached a new level Friday when he shared a doctored photo of fellow GOP White House hopeful Jeb Bush that came from a Twitter account called “@WhiteGenocideTM.”

The user, who Trump manually retweeted, said he lives in “Jewmerica” on his Twitter profile and had the slogan “Get the f--- out of my country” as his background image. The account’s other tweets include racist, anti-Semitic and prejudiced messages.

The image Trump retweeted depicted Bush as a homeless man standing in front of Trump Tower in New York City, holding a cardboard sign that said “Vote Trump.”

This is not the first time Trump has shared anti-Bush images from his Twitter account. In December, he retweeted a supporter who altered an image of Bush to make it look as though the former Florida governor was picking his nose. Then earlier this month, he shared a fake image of Bush sitting at a lonely birthday party “waiting for supporters to show up.”

Trump also has a history of tweeting controversial images or sharing tweets from supporters with prejudiced views. In November he sent out a tweet that criticized Bush and included an image of a Nazi swastika. He deleted that tweet and a spokeswoman told Business Insider Trump did not see the image before retweeting it.

Also in November, Trump retweeted an account with false statistics about black murder rates in the United States. The image turned out to originate from an account that said it supported Hitler’s ideas, ThinkProgress reported.

It’s not entirely surprising that some of Trump’s supporters on social media hold white supremacist ideas. White nationalists have been excited about the Republican’s candidacy since he announced he would run last summer, and have even been using his ideas to recruit new members and grow the readership on their websites.

So far, Trump has not publicly drawn a line to determine with whom he will not interact on social media. Even as people on Twitter reacted Friday to his sharing of @WhiteGenocideTM’s tweet, Trump had not responded to the criticism and continued tweeting about his poll numbers.