Daniel Levy, in Foreign Affairs, points out that most experts and security apparatchiks in Israel like the Iran deal, but very few politicians. There are some real zingers in this piece, such as:
In main, the Israeli leadership has focused on castigating the deal for what it was never designed to address, namely Iran’s role in the region. That must be particularly irksome to the P5+1 powers. It was, after all, Israel’s leaders who insisted that the nuclear file be addressed first and on its own, and who pushed back hard against any attempt to forge a more comprehensive understanding or grand bargain with Iran (an idea explored over a decade ago in back-channel talks during the term of President Mohammad Khatami). Last summer for instance, when Iran and the West found themselves on the same side against Islamic State (also called ISIS) in Iraq, senior Israeli Minister Yuval Steinitz, who was head of the Iran file at the time, noted that Israel had pushed for and received commitments from “the Americans and the British and the French and the Germans—that a total separation will be enforced,” that is, the West would not negotiate with Iran on regional issues until the nuclear question was dealt with. Israel, in other words, demanded that the nuclear file be treated as a standalone issue—the very thing that it now criticizes about the deal.
So basically it seems that Israeli politicians feel about the Iranian nuclear deal the same way they feel about Israeli-Palestinian peace: a nice idea to pay lip service to, but something they'll do everything to oppose in practice. Levy's analysis of what stands for Netanyahu's opposition in Israeli politics, and their repositioning as not only against the deal but also against the way Netanyahu has opposed the deal, is enlightening to read inasmuch as what it tells you about the chronic short-termism of Israel's political leaders.
The conclusion on Israel-US relations is fascinating, too:
More than the Iran deal itself, it is this Netanyahu-led campaign against the White House that is so controversial, both in Israel and in the United States. The Israeli center–left, the country’s President Reuven Rivlin, and the security establishment have all condemned Netanyahu on that score. Stateside, Bibi has the competing pro-Israel lobbies—AIPAC and J Street—duking it out, and Jewish community centers, federations, and synagogues are all being pulled into the fray. American Jews are being asked to ditch the Democrat president they have overwhelmingly voted for (twice) in favor of a Republican-aligned Israeli prime minister, who previously pushed for the Iraq war and is now engaged in a deeply partisan struggle, in which he wants the Israeli interest (as he interprets it) to be placed above the American interest. Many American Jews are uncomfortable with being put in this predicament. Polls suggest that a clear majority back Obama and his Iran deal. To be sure, at this point, it is unclear who is using whom more—Israel the Republicans or the Republicans Israel.