On 31 March 2018, after complaints from Labour politicians, Sugar deleted a tweet showing an edited image of Labour leader Jeremy Corbyn in a car with Adolf Hitler. The incident occurred after Corbyn said the party "must do better" in resolving the party's problems with antisemitism. Shadow Chancellor John McDonnell had urged him to "delete and disown" the tweet. Sugar responded that he was "not the originator" and that "There is no smoke without fire in Labour".
