LONDON—Britain’s opposition Labour Party is facing accusations of anti-Semitism that reached the party’s senior leadership and triggered the resignation of a close ally of party leader and veteran leftist Jeremy Corbyn.
The controversy threatens to undermine the party’s strong historical links to Britain’s Jewish community and could spell trouble for Mr. Corbyn, who is already facing criticism from some of his own lawmakers over his response to the poisoning of a former Russian double agent last month.
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