Presumptive Republican presidential nominee Donald Trump has thrilled and emboldened his racist online neo-Nazi supporters with his refusal to denounce them in a recent CNN interview.

Reporter Julia Ioffe recently wrote a profile of Melania Trump for GQ which was criticized by Melania Trump for purportedly being unfair. The Daily Stormer, a neo-Nazi website that’s endorsed Trump, responded to Ioffe’s piece by directing followers to “go ahead and send her a tweet and let her know what you think of her dirty kike trickery.”

What followed was a barrage of anti-Semitic messages and death threats against the reporter. Ioffe told CNN that Trump fans have been sending her “the most obscene, anti-Semitic stuff I have frankly ever seen directed at me in my life.” She “also received a call from someone claiming to be from a company called ‘Overnight Caskets.’ ‘We got an email with your phone number saying you'd need our services,’ Ioffe detailed in a post on her Facebook page.”

CNN’s Wolf Blitzer interviewed Trump on May 4 and asked if he would denounce the anti-Semitic death threats against Ioffe. Trump refused to condemn the threats, saying he was unaware of them and adding, “I don’t have a message to the fans. A woman wrote a article that was inaccurate.”