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Jeremy Corbyn, the leader of Britain’s Labour Party, has a long history of playing footsie with bigotry — specifically with anti-Semitism.

“Over the years, he has attended protests and conferences alongside campaigners who have expressed anti-Semitic views,” Sam Knight, the London-based New Yorker writer, has noted. As Josh Glancy of The Sunday Times of London detailed : “Mr. Corbyn has described the constitutionally genocidal Hamas as his ‘friends.’ He’s appeared on stage with inveterate anti-Semites. He’s defended a mural that depicted hooknosed bankers running the world. He’s attended a wreath-laying ceremony that celebrated the perpetrators of the Munich Olympics massacre.”

When confronted about these instances, he has repeatedly claimed to have been unaware of his friends’ hatred. “Corbyn has an odd knack for stumbling into the arms of the Hebraically disinclined,” my colleague Bret Stephens has written.