US President Donald Trump said on Tuesday that he would love to make a deal with Iran to improve bilateral relations, but added that Tehran should not develop a nuclear weapon. “I say this to Iran, who"s listening very intently, "I would love to be able to make a great deal. A deal where you can get on with your lives,”” Trump told reporters in Washington. “They cannot have one thing. They cannot have a nuclear weapon and if I think that they will have a nuclear weapon ... I think that"s going to be very unfortunate for them,” He said.