Trump has a congressionally mandated deadline of Monday to decide.
As a candidate and president, Trump has said he would reexamine and possibly kill what he called the "disastrous" nuclear deal that was negotiated under President Barack Obama and went into effect in January past year.
But the decision about whether to scrap the deal has reportedly sparked fierce internal divisions, with Secretary of State Rex Tillerson arguing the USA should keep the seven-nation accord. For now, the State Department's official line is that it's not making any major shifts until the completion of an ongoing overall review of U.S. -Iran policy, so changes could be coming. "This is one of the worst deals ever made by any country in history", Trump said in September at a presidential debate.
That's not to say that the deal will definitely outlive the Trump administration.
Conservative opinion magazine The Weekly Standard was the first to report the news Thursday, citing four unnamed sources.
Trump to certify Iran complying with nuclear deal
While lifting nuclear-linked sanctions, the United States maintains sanctions related to Iran's ballistic missile programme, human rights record and what Washington charges is its support for worldwide terrorism.
Iranian Foreign Minister Mohammad Javad Zarif has called on the USA to reconsider its approach towards the Joint Comprehensive Plan of Action (JCPOA aka nuclear deal).
"The disease is broader Iranian aggression".
Zarif noted that Iran's expectation at the current stage was to see the compliance of all sides of the agreement to the deal, something which has been violated by the United States, according to Zarif.
"This deal belongs to the worldwide community, having been endorsed by the United Nations Security Council, that expects all sides to keep the commitments they took two years ago", she added. "We share responsibility to make sure that this continues to be implemented fully by all".More news: Watch a massive cold spot grow and travel across the sun's surface