Rhea Wolfson, the Jewish Labour activist, has been elected to the party’s National Executive Committee.
She won 85,687 votes as one of six candidates backed by the hard-left Momentum group. All six won places on the party's ruling body.
Ms Wolfson, the only Jewish candidate in the race, ran for the NEC, after Ken Livingstone was suspended from the party over comments about Hitler and Zionism.
Speaking to the JC, Ms Wolfson said: “I'm incredibly excited and grateful to have been elected onto Labour's NEC.