In what many observers will see as the de facto expression of mainstream U.S. Jewry’s outlook on J Street, members of the Conference of Presidents of Major American Jewish Organizations on Wednesday voted 22-17 (with three abstentions) to reject the membership application of the self-labeled “pro-Israel, pro-peace” lobby. J Street secured the votes of only about a third of the Conference’s 50 members. The 42 Conference members in attendance in New York exceeded the 75-percent quorum needed to hold the vote, but J Street fell significantly short of the required threshold of a two-thirds affirmative vote from the Conference’s full...