Britain's Shadow Chancellor John McDonnell speaks during general election campaign event in Birmingham, Britain December 4, 2019. REUTERS/Phil Noble - RC2BOD9XOA11

LONDON (Reuters) - British opposition Labour Party’s John McDonnell said on Sunday he was worried that accusations of failing to tackle anti-Semitism had damaged his party’s election campaign.

“I worry that this has had its effect,” McDonnell told the BBC. “We’ve done everything, I think, we can possibly do, we’ve apologised to the Jewish community.”