He was the executive director of the American Council for Judaism from its founding in 1943 until he resigned in 1968, at which time he founded American Jews for Alternatives to Zionism.
He was the executive director of the American Council for Judaism from its founding in 1943 until 1955. After this time, he served as a consultant until his resignation in 1968, at which time he founded American Jews for Alternatives to Zionism.