Earlier today William Daroff, vice president of the United Jewish Communities, a massive umbrella organization for the countries federations and communities, offered some harsh truths about J Street, the pro-peace, pro-Palestinian lobbying group which describes its primary mission in a New York Times magazine piece this week as doing "whatever we can in Congress to act as the president's blocking back." Here's the conversation between Daroff and J Street campaigns director Isaac Luria:

Daroff: "@isaacluria And @JStreetdotorg stands with the Mullahs and the hard left at NIAC opposed to sanctioning Iran. UR to left of Obama & everyone....the entire organized Jewish community is for sanctions as last ditch effort to stop Iran..."

J Street is just about the only Jewish organization in America that opposes any and all sanctions on Iran. But it is not clear if they do this out of ideological principle, in collaboration with other anti-Israel groups, or simply to serve as Obama's "blocking back," as seems most likely. They will push whatever policy the adminsitration is pushing, and at the moment the administration is trying to stymie the sanctions working their way through Congress. That, of course, would mean that J Street is nothing more than a partisan, Democratic organization trying to provide Jewish cover to an administration that is hostile to Israel -- they only stand with the mullahs because Obama stands with the mullahs.