“It’s not a great deal, but it’s enough of a deal to postpone the nuclear situation and maybe give us time to work things out,” Lippy told me. “While they’re being sharply reduced in their nuclear capacity, we can sit down again over the next several years and talk about the Holocaust, Israel and human rights, and that is why I go along with it.”

She’s right. A merit of this deal is that it would condemn the United States and Iran to a relationship — hostile, but still a framework for airing differences and doing business — over the next 15 years. Most young Iranians no more believe in “Death to America” than they believe the Hidden Imam is going to show up tomorrow.

Moskowitz was left feeling uneasy. On balance, not worrying enough for the United States to walk away. Nor does he want the family strife that would arise if he sided with his fears. His wife, Peta Moskowitz, is a firm supporter of the deal and a member of J Street, the largest Jewish organization to back Obama’s Iran diplomacy. These strains are not unusual. Within families and across the American Jewish community, discussion of the Iran deal is fiery.

A few things must be said. Netanyahu’s performance was of a piece with his habit of intervening in American politics, evident at the time of the last presidential election, when his preference for Mitt Romney was clear. His relations with Obama are bad. He tries to circumvent Obama, often in clumsy ways, further undermining the relationship. It’s enough to imagine Obama calling thousands of Israelis to encourage them to oppose a piece of sensitive legislation in the Knesset to gauge how inappropriate Netanyahu’s behavior is.

The Netanyahu webcast was co-sponsored by the Conference of Presidents of Major Jewish Organizations (an umbrella organization so resistant to the age-old fertile cacophony of Jewish opinion that it rejected J Street’s application for membership last year) and the Jewish Federations of North America.