President Donald Trump announced on Tuesday that the United States would withdraw from a deal it reached with Iran in 2015 regarding the Middle Eastern nation’s nuclear program. The agreement—signed by the U.S., the United Kingdom, France, Germany, Russia, and Iran—is aimed at preventing Iran from being able to develop nuclear weapons. In return, the U.S. and its allies agreed to lift economic sanctions that had been crippling Iran’s economy.
“This was a horrible one-sided deal that should have never, ever been made,” Trump said at the White House in announcing his decision. “It didn’t bring calm, it didn’t bring peace, and it never will.”
The deal, reached after more than two years of intense negotiations, was one of President Barack Obama’s signature foreign policy achievements. Among other things, it requires Iran to ship most of its nuclear materials out of the country and allow international inspectors to regularly monitor all aspects of its nuclear program.
Obama and other supporters of the agreement have long said that it’s our best hope at preventing Iran from building nuclear weapons. But critics, including President Trump, say the deal isn’t tough enough to keep Americans safe, in part because most of its restrictions end by 2023. Trump also insists that Iran’s leaders can’t be trusted to keep up their end of the bargain. (International inspectors, however, have found no evidence of major violations.)
Still, Trump says the deal isn’t in the best interests of the American people. His announcement of a withdrawal fulfills a long-held campaign promise to dismantle the agreement, which he has called the “worst deal ever.”
But experts say Trump’s decision will isolate the U.S. from its European allies, who have vowed to honor the deal with or without the U.S.
“France, Germany, and the United Kingdom regret the U.S. decision to get out of the Iranian nuclear deal,” President Emmanuel Macron of France wrote on Twitter shortly after Trump’s announcement.