The president is seeking an agreement that "never expires", and that "denies Iran all paths to a nuclear weapon forever- not for ten years or any other shorter period of time", the senior official said, referring to controversial "sunset" clauses within the nuclear accord.
On Friday, Trump also approved new sanctions against Iranian officials and organizations, including Sadeq Larijani, the head of Iran's judiciary, and 13 other entities including the cyber unit of the Islamic Revolutionary Guard Corps. Trump has complained that numerous Iranian restrictions expire next decade and has vacillated between talk of toughening the deal and pulling the US out entirely.
Trump also wants Congress to modify a law that reviews U.S. participation in the nuclear deal to include "trigger points" that if violated would lead to the United States reimposing its sanctions, the official said.
Chinese Foreign Minister Wang Yi has urged all signatories to the multilateral 2015 agreement on Iran's nuclear program to continue its implementation amid United States threats to withdraw from the deal, Press TV reported. One official said the actions "will send a very strong message that the United States is not going to tolerate their continued abuses".
The new terms Trump seeks with the European countries appear similar to actions he asked Congress to take three months ago but that Congress has not acted on.
Trump had promised the people of Iran "great support" from the U.S.as they protested the government. It also sanctioned agencies that censor or limit access to the Internet.
Hailed by Obama as key to stopping Iran from building a nuclear bomb, the deal lifted economic sanctions in exchange for Tehran limiting its nuclear ambitions.
The European countries which signed on, including the U.K., France, and Germany urged the US to stay in on Thursday, claiming that Iran has been holding up its side of the bargain since the deal was signed.
The next deadline to waive sanctions under the agreement is the middle of May.
Iran will never renegotiate the 2015 nuclear deal despite the USA pressures, Iran's Foreign Ministry said on Saturday.
But he also made clear these waivers will be the last, unless what he calls serious flaws in the agreement are addressed by the spring.
In addition, he wants the deal to state that Iran's nuclear effort and its missile programs are inseparable.
He urged Iran to remain calm and continue to fulfil its obligations under the deal.
The deal on Iran's nuclear program was reached between Iran and six worldwide mediators (the United Kingdom, Germany, China, Russia, the United States, and France) on July 14, 2015.
"We will continue to work together with global community against these USA steps", he added.
Trump has called the deal "the worst ever".
For Iranian Foreign Minister Mohammad Javad Zarif, Trump's actions are an attempt to unilaterally destroy a multilateral deal, a move Zarif believes is not allowable under worldwide law. That has put Trump in a tough position, given his opposition to the deal.