Netanyahu has long accused Iran of developing a nuclear weapon and went on a global campaign against the Obama deal. He painted the nuclear program as an existential threat to Israel and the world, and said the agreement was too weak to contain it. Israel remains the Mideast’s only nuclear-armed state, an advantage it would like to keep.

The pivot to negotiations with Iran in April was a shock for Netanyahu, who had flown to Washington seeking Trump's backing for military strikes on Iran’s nuclear facilities and learned less than 24 hours before a joint White House press event that U.S. talks with Iran were starting within days, four sources familiar with the matter told Reuters.

U.S. President Donald Trump blindsided Israeli Prime Minister Benjamin Netanyahu with his decision to immediately open negotiations with Iran last month. Now, the talks hinge on winning key concessions that would prevent the Islamic Republic ever developing a nuclear bomb,