The other day I was talking to a senior Obama administration official about the foreign leader who seems to frustrate the White House and the State Department the most. “The thing about Bibi is, he’s a chickenshit,” this official said, referring to the Israeli prime minister, Benjamin Netanyahu, by his nickname.

This comment is representative of the gloves-off manner in which American and Israeli officials now talk about each other behind closed doors, and is yet another sign that relations between the Obama and Netanyahu governments have moved toward a full-blown crisis. The relationship between these two administrations— dual guarantors of the putatively “unbreakable” bond between the U.S. and Israel—are now the worst they’ve ever been, and they stand to get significantly worse after the November midterm elections. By next year, the Obama administration may actually withdraw diplomatic cover for Israel at the United Nations, but even before that, both sides are expecting a showdown over Iran, should an agreement be reached about the future of its nuclear program.

The fault for this breakdown in relations can be assigned in good part to the junior partner in the relationship, Netanyahu, and in particular, to the behavior of his cabinet. Netanyahu has told several people I’ve spoken to in recent days that he has “written off” the Obama administration, and plans to speak directly to Congress and to the American people should an Iran nuclear deal be reached. For their part, Obama administration officials express, in the words of one official, a “red-hot anger” at Netanyahu, for pursuing settlement policies on the West Bank, and building policies in Jerusalem, that they believe have fatally undermined Secretary of State John Kerry’s peace process.