It doesn't slow their program enough, and holding them accountable is hard under the agreement. It seems both sides are trying to get the other to renege on the agreement first - and if so, Trump's tough talk at the United Nations might have been an attempt to bait Hassan Rouhani and the mullahs into exiting the pact.
Trump said Wednesday he had made his decision but was not yet ready to reveal it.
This image shows U.S. President Donald Trump (R) and North Korean leader Kim Jong-un.
In August, he warned of "fire and fury" for Pyongyang as tensions escalated over its pursuit of nuclear-tipped ballistic missiles capable of hitting the continental U.S.
"President Trump has twice certified that Iran is complying". The EU's foreign policy chief, Federica Mogherini, said that after the talks everyone was in agreement that there have been no violations. "He aims to unify the world through tactics of intimidation, but in reality he only further isolates the United States".
Tillerson said it's a political discussion now about whether to remain in the deal.
"That is the reason he is very, very carefully considering the decision of whether we find the JCPOA to continue to serve the security interests of the American people or not", he said, referring to the pact formally called the Joint Comprehensive Plan of Action.
Low-enriched uranium, which has a 3%-4% concentration of U-235, can be used to produce fuel for nuclear power plants, but it can also be enriched to the 90% needed to produce nuclear weapons.
Iranian President Hassan Rouhani warned that the United States would forfeit the trust of the global community if it abandons a nuclear accord with Tehran. "And in fact when the [former US President George W.] Bush administration put on the table the prospect of negotiating some kind of agreement with Iran, it too understood that Iran would not accept limitations forever", he said.
Iran rejects that it has broken the agreement, and a United Nations report this month pointed to no Iranian violations. "Secretary (of State Rex) Tillerson is leading the effort, and we will hopefully get this resolved through diplomatic means". She suggested that US complaints about Iran's troublesome non-nuclear activities should be discussed in a different forum.
European Union foreign policy chief Federica Mogherini said on Wednesday that there was no need to renegotiate the Iranian nuclear deal, insisting it was "delivering" despite USA demands to re-open the agreement.
Gabriel told reporters any U.S. move to cancel the Iran deal and impose new sanctions on Tehran would discourage powers such as North Korea from negotiating an end to their own nuclear programmes.
"The United States has great strength and patience, but if it is forced to defend itself or its allies, we will have no choice but to totally destroy North Korea". "And we can not abide by an agreement if it provides cover for the eventual construction of a nuclear program". Iranian President Hassan Rouhani said on Wednesday at the UN General Assembly that Trump's recent anti-Iran speech was "ignorant and spiteful". "Unfortunately, he offered only his trademark bluster and grandstanding, which will do little to make America or our world any safer".
Rouhani then told reporters at a news conference that the Iranian people are waiting for an apology from Trump for his "extremely offensive" rhetoric and baseless allegations.