“As leader of the Labour Party, Keir has been clear that restoring trust with the Jewish community is a number one priority.
“Antisemitism takes many different forms and it is important that we all are vigilant against it.”
Ms Long-Bailey shared an article from Labour-supporting actor Maxine Peake.
In the newspaper interview, Ms Peaky claimed Israel had trained US police to use controversial tactics similar to the ones which led to the death of the black man George Floyd last month.
The interview also focused on the actor’s support for former Labour leader Jeremy Corbyn.
Sharing the article on Twitter, Ms Long-Bailey wrote: “Maxine Peake is an absolute diamond.”