"It could not be clearer that the Labour Party is now a long way away from the common, centre ground of British politics today."
Meanwhile, the row over the disciplinary panel’s decision has escalated within Labour with more than 100 of the party’s MPs signing a statement expressing dissatisfaction with the outcome.
They said: “This week the institutions of the Labour Party have betrayed our values. We stand united in making it clear that we will not allow our party to be a home for antisemitism and Holocaust revisionism. We stand with the Jewish community and British society against this insidious racism.”
Leading figures in Labour Friends of Israel have called for Mr Livingstone be expelled.
While Mr Livingstone has so far remained unrepentant, Labour leader Jeremy Corbyn has criticised him for continuing to make “offensive” remarks.
A strongly-worded editorial in the Guardian condemned the party, saying “Labour values Mr Livingstone’s membership over the fight against antisemitism. ‘Zero tolerance’ was a lie”.