Per secret files seen by The Sunday Times, the party's reputation is still mired in anti-Semitism controversies that have triggered multiple complaints about blatantly anti-Jewish sentiment, with the party purported to be acting inefficiently to stamp it out.
'I apologise to the Jewish group for the struggling we have inflicted on them, I say to them we're doing all the pieces attainable, we need to study extra classes and we need to be the shining instance of anti-racism that the Labour Celebration needs to be'.
According to the Sunday Times investigation, leaked documents showed some cases remaining unresolved months or years after they were raised.
"My understanding is well below that, and there will be a report in the normal way published in January".
"Our new procedures are dealing with that and that report today doesn't take that into account".
Mr McDonnell also said that we was working within the Labour Representation Committee to "challenge" issues of antisemitism. "There's a debate going on", he said.
Another claimed that an official at a constituency Labour Party "objected to 25 applications for membership from the ultra-Orthodox Jewish community and required home visits to these prospective members' houses", which was not a requirement for other prospective members and "appears to have been direct discrimination against Jewish applicants for membership".
Labour branded it a "transparent political attack", which they said had "nothing to do with tackling anti-Semitism". "I've made my position clear, I completely disagree if I'm honest".
In a letter to BBC director-general Tony Hall and director of news and current affairs Fran Unsworth, JVL co-chairs Jenny Manson and Leah Levane said: "In the closing stages of an acrimonious election campaign, the BBC's coverage of anti-semitism charges against the Labour Party has been both unbalanced and uncritical".
But on Thursday, the Jewish Labour Movement called on the Equality Human Rights Commission to urge the Labour Party to acknowledge it has become "institutionally antisemitic".
"And so, if Labour are in a situation where they consider that Jeremy Corbyn is no longer fit to lead them, then we will of course look to keep working with people to try and secure a People's Vote".