“His view is 'I'm a progressive so I can't be antisemitic',” she says. “He boasts how his mother was at the Cable Street demonstration — 'I had progressive mother's milk so you can't call me antisemitic.'”
Professor Lipstadt devotes several pages in her book to analysing Mr Corbyn’s history of associating with controversial figures including Stephen Sizer, a former Church of England vicar who was accused of posting a link to an avowedly antisemitic website, and Raed Salah, a Palestinian Islamist preacher, who was invited by the Labour leader to Parliament even though he was of concern to the Home Office.
In the book, Professor Lipstadt suggests it is wrong to question whether Mr Corbyn is an antisemite himself and better to question who he chooses to associate himself with.
On Monday, the Chief Rabbi Ephraim Mirvis claimed Labour was still failing to deal with the issue of antisemitism in the Party under Mr Corbyn despite “impressive” claims they were ready to tackle the problem.