Trump warns Iran faces 'violence like people haven't seen before' if nuclear deal fails

President Donald Trump insists Iran must choose between no nuclear weapons or face unprecedented violence, as negotiations for long-term peace continue.

Trump suggested Iran may now be informally moving toward compliance with international demands to halt its nuclear weapons ambitions, but emphasized that a final agreement has not yet been reached.

"I want them to succeed. I want them to end up being a great country, frankly, but they can't have a nuclear weapon. That's the only thing. It's very simple," Trump said. "It's not like I have to give you 30 pages' worth of details. There's only one sentence. They can't have a nuclear weapon. And I think we're getting close to maybe doing a deal without having to do this."