No formal U.S. process or executive committees were initiated to review the policy before Trump’s decision, and the diplomats responsible for implementing the policy were left in the dark.

Even the Israelis, who have advocated for this move for years, were stunned at the timing of Trump’s message.

“We all found out by tweet,” one Israeli official said. “We’ve been lobbying for this for a long time, but it was not the product of one phone call. There were hints, but we weren’t given advance notice.”