The short version of what happened over the weekend with regards to a deal with Iran:

Trump: “WE HAVE A DEAL”
Netanyahu: “Nope”
Trump: “Deal’s off”

The longer variant: Moon of Alabama

A deal with Iran is (again) off the table. Meanwhile the severe damage of the conflict to the global and U.S. economy is accumulating  by the day.

Time is not on Trump’s side. He urgently needs a deal. But to get there he needs to get Netanyahoo off his back. How to do that is the really difficult question.