During the 2014 Gaza conflict, Mr Khan tweeted an article with the headline: “The Israeli government are acting like Nazi’s [sic] in Gaza.”
In March 2017, when it emerged he was running for Parliament, he told the JC his tweet had not been an endorsement of the article.
“I have long since deleted this tweet and when this issue was raised with me last year I apologised for any offence caused,” Mr Khan said.
He claimed the episode was being used to “smear” him, and cited his years of work on groups tackling antisemitism as an example of his opposition to hatred.