MP Naz Shah has backed calls for Ken Livingstone to be expelled as she spoke out on the case for the first time since he was suspended for defending her a year ago.

The Bradford MP has been widely praised for her efforts to learn more about the Jewish community and Israel after she was suspended over a social media post widely deemed to be anti-Semitic.

Despite the fact she quickly apologised, Livingstone has continued to maintain the post wasn’t anti-Semitic. It was in touring media studios 11 months ago that he made his now infamous comments about Hitler and Zionism.

But Shah has now joined more than 100 MPs in signing a Jewish Labour Movement letter in condemnation of the decision this week not to expel him, and rather to impose a further one year suspension.

In response to a tweet from London mayor Sadiq Khan describing the failure to expel as “deeply disappointing”, Shah wrote: “Completely agree with @mayoroflondon, we all make mistakes, leadership is about learning from them #antisemitism.”

In an interview with Jewish News, Livingstone repeatedly refused to offer a full apology. He has been condemned by long-term ally Corbyn for failing to do so.