On Friday morning, Daily Wire editor-in-chief Ben Shapiro announced that he would never vote for Donald Trump. In response, former Ku Klux Klan grand wizard David Duke took to Twitter to condemn Shapiro in purely anti-Semitic terms, and to urge Trump to remember Shapiro’s supposed betrayal:

On Sunday, Trump refused to disavow Duke and claimed ignorance as to his identity, even though he’d disavowed his support the Friday before. After a furor broke out over Trump’s comments, Trump disavowed Duke again and eventually called him a “bad person.”

In response to Duke, Shapiro tweeted: