The changes the administration is seeking include the indefinite extension of limits on Iran's uranium enrichment and other nuclear activities and an intensified inspections regime.
Trump has said he sees three defects in the deal: its failure to address Iran's ballistic missile program; the restrictive terms under which global inspectors are allowed to visit suspected Iranian nuclear sites; and its "sunset" clauses under which the deal's limits on Iranian nuclear activities such as uranium enrichment start to expire after 10 years.
The Iranian diplomatic team visiting Vienna for regular talks on the implementation of the nuclear deal (JCPOA) has said diplomats from Iran and the US were likely to hold mutual talks on Friday on the global nuclear agreement, an source close to the Iranian diplomatic team said on Friday.
"There is a lot we agree on and where we disagree we are working to bridge our differences", Hook said. Tillerson had joined Defense Secretary Jim Mattis in pressing a skeptical Trump to stick with the agreement with Iran. Since those sanctions wouldn't be related to nukes, the three European nations say they're still operating within the parameters of the 2015 deal and wouldn't give Iran an easy way out.
One European diplomat said representatives from Europe were desperate to save the JCPOA from a possible collapse, which could be a case due to policies adopted by US President Donald Trump.
A senior State Department official in Washington, who was not authorized to discuss the matter publicly and spoke on condition of anonymity, said the USA side has used the opportunity to raise the cases of Americans imprisoned or missing in Iran. Since the 2015 nuclear deal that reintroduced Iran to global oil markets, this is only the second worldwide development deal that has reached fruition. In his 2016 presidential campaign, Trump railed against the agreement as the "worst deal ever", saying Iran had won relief from sanctions without having to give up enough in return.
Araqchi said, however, that the United States, as a party to the JCPOA, has adopted a subversive approach toward the JCPOA over the past 14 months. It's the last scheduled meeting of the group before Trump's 12 May decision on whether the U.S. sticks to the accord.
U.S. President Donald Trump, however, has repeatedly threatened to withdraw from the deal over the objections of European Union member states. Iran "cannot remain in a deal in which there is no benefit for us", he said.
How would the USA withdrawal combat Iran?
The head of U.S. Central Command, U.S. Army Gen. Joseph Votel, who oversees American forces in the Middle East, warned lawmakers on Tuesday about the consequences of the agreement unraveling.