President Trump announced that the US will withdraw from the Iran nuclear deal, a huge shift in US foreign policy that could have far-reaching implications in the Middle East and beyond. The deal was struck in 2015 between Iran and six major world powers (China, France, Germany, Russia, the UK, and the US) to limit development of Iran's nuclear capabilities in exchange for the removal of crippling economic sanctions. President Trump has been a vocal critic of the deal since his presidential campaign, reiterating his disdain for it during his announcement to withdraw: “This was a horrible, one-sided deal that should have never, ever been made. The Iran deal is defective at its core.” Supporters of the deal, including EU leaders, had implored Trump to stick with the pact, arguing that Iran has complied fully and that letting the accord lapse would make Iran substantially more dangerous to the world. Now those EU leaders are scrambling to save the deal, with Iranian President Hassan Rouhani remarking they have, "a very limited opportunity to preserve [it]" and that Iran may, within weeks, resume developing its nuclear capabilities “without any limitations."