German Foreign Minister Sigmar Gabriel called on the United States to consider the 2015 nuclear deal with Iran as a separate issue from Tehran's ballistic weapons programme and its role in Syria's civil war.
Under the accord, Iran slowed its nuclear program in exchange for an easing of global economic sanctions.
But Trump, who has previously vowed to scrap the nuclear pact, is privately expressing reluctance to heed the advisers, the officials said.
Mr. Trump's expected move falls far short of what U.S. Iranian hawks had been hoping for, even if Mr. Trump again asserts the deal is not in the U.S. interest.
Trump's October decision not to certify Iran's compliance with the nuclear deal has put Washington at odds with all other signatories of the accord - Britain, France, Germany, Russia, China and the European Union.
The U.S. government has said that expansion of Iran's missile program is against the "spirit" of nuclear deal.
Mr. Kamalvandi's comments came as European powers prepared to meet Thursday to reaffirm their support for the accord. "IAEA has verified Iran's full compliance, but continuation will depend on full USA compliance", he wrote.
"Killing or sticking with the Iran deal isn't just about Iran".
President Trump will begin deliberating whether to reimpose sanctions on Iran today, possibly unequivocally violating the terms of the 2015 nuclear deal.
Trump and his top advisers have been negotiating with US lawmakers on Capitol Hill to try to change sanctions legislation so that he does not face a deadline on whether to recertify Iranian compliance with the nuclear deal every 90 days.
They expressed willingness to continue to fulfil obligations under the deal, formally known as the Joint Comprehensive Plan of Action (JCPOA), Xinhua reported. The threat of new USA sanctions would also limit American leverage in pursuing regional stability and nonproliferation. Last month saw lawmakers miss what had widely been seen as a deadline set by the White House for such legislation to be delivered.
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 State Department has threatened to take punitive action against Iranian officials who engaged in violence and other aggressive tactics to crush the protests.
On the one hand, it would seem to be the height of foolishness to see whether Iran will follow through with its threat and to allow the opportunity for Iran to possess a nuclear weapon in the near future when it is now complying with the deal according to both Israeli and United States intelligence.
However, Congress passed the ball back to Trump by letting the deadline on reimposing sanctions on Iran pass. Trump is expected to decide whether to keep the agreement or abrogates it on Friday.