The terms of the nuclear agreement require the State Department to update Congress on Iran's compliance every 90 days.
The secretary of state then specifically addressed the Obama administration's nuclear deal with Iran.
"I think it was the worst deal I've ever seen negotiated", Trump told Fox News. We should double up and triple up the sanctions and have them come to us.
"We understand there is some tough talk for internal consumption and the U.S. electorate", one Western diplomat explained. "But we don't foresee the U.S. trying to reinterpret the agreement. We could be wrong".
Israeli Prime Minister Benjamin Netanyahu has criticized the deal.
Tillerson made the comment in a letter he sent Tuesday to US House Speaker Paul Ryan in which he suggested an evaluation of whether sanctions should be reinstated. "None of the other countries would be up for that".
Voronkov also stated that USA economic sanctions against Iran "create an unfavorable climate".
But a senior administration official said the White House is serious about its reservations with the agreement, known as the Joint Comprehensive Plan of Action (JCPOA). The immediate concern is the ways in which the financial relief provided by the deal's rollback of sanctions is being used by Iran to destabilize the region.
"Any discussion of Iran is incomplete without mentioning the JCPOA". He added, "let me tell you, this deal is catastrophic for America, for Israel and for the whole of the Middle East".
The former Exxon Mobil CEO said "it's clear there are many" threats the country poses. The Iranian government repeatedly denied those accusations.More news: Chris Sutton believes Arsenal must replace Arsene Wenger
Like the diplomats, Kirby said the administration may be looking for political cover. He said in July of 2015 that "Iran is going to receive a sure path to nuclear weapons".
The body of the agreement itself - the portion Iran believes is legally binding - does not preclude Iran from developing nuclear weapons after a certain time, variously estimated as between 10 to 15 years from the signing of the agreement.
Tillerson said Iran has complied with the agreement's terms through Tuesday, the day he released the letter.
The U.S. has long accused Iran of supporting terrorism in countries such as Syria, Iraq and Yemen - as well as backing Lebanese group Hezbollah.
But Majidyar argued that scrapping the deal wouldn't help Washington.
The deal has allowed many Western companies to resume business with Iran, including Boeing, which has signed two major agreements to deliver dozens of planes to Iran.
Iran was required to give up nearly all of its enriched uranium, which can be used to make a nuclear weapon, and is subject to ongoing inspections by the International Atomic Energy Agency.
Still, since taking office, Trump has stopped promising he'll gut the deal.
On Wednesday, Defense Secretary Jame Mattis also highlighted Iran's in involvement throughout the Middle East. "Iran must know now that the USA president is authorized to destroy - without warning or negotiation - any attempt by Tehran to build a bomb". "But the United States banks are not active enough and don't work effectively on providing financial mechanisms for this process".