US accuses Iran of "alarming provocations" amid nuke tensions
By design, the nuclear deal does not address those Western grievances, meaning Tehran can be in compliance even as it violates United Nations resolutions and remains a US -designated state sponsor of terrorism.
The State Department also said that it had extended sanctions relief to Tehran under the agreement.
Former President Barack Obama would have agreed with all the charges: that Iran is a state sponsor of terrorism, that it supports proxies which undermine USA interests in the region, that it's hostile to Israel and that its ballistic missile tests challenge UN Security Council prohibitions.
But Tillerson argued the accord had just been a way of "buying off" the regime and would only delay its development of a nuclear weapon that could threaten its region and the world.
Tillerson accused Iran of intensifying multiple conflicts including the one in Syria, undermining United States interests in several countries, continuing to support attacks against Israel, and sponsoring cyber and terror attacks across the world.
Taking a tough stance, he said: "Whether it be assassination attempts, support of weapons of mass destruction, deploying destabilising militias, Iran spends its treasure and time disrupting peace".
In his letter to Ryan, Tillerson said that "Iran remains a leading state sponsor of terror through many platforms and methods". He also said the narrowly-defined deal to control their nuclear program did not stop Iran from other meddling in the region through terrorism.
Sen. Tom Cotton, R-Ark., who led congressional opposition to the Iran deal, said in a statement that the administration's "certification is shaky, and it doesn't mean that the intentions behind Iran's nuclear program are benign".
The Trump administration first announced that they would be reviewing Obama's nuclear deal on Tuesday.
"The [nuclear deal] fails to achieve the objective of a non-nuclear Iran".
Until recently, the White House has suggested that it would pursue a harder-nosed version of the Obama administration's approach to implementing the nuclear deal, honoring but more stringently enforcing its terms. With some of those critics now in office, Tillerson's comments Wednesday marked the first time that position has been echoed by the USA government. "The Trump administration is now conducting a comprehensive review of our Iran policy".
On the climate agreement, the White House postponed a meeting Tuesday where top aides were to have hashed out differences on what to do about the non-binding worldwide deal forged in Paris in December 2015.
During his presidential campaign, Trump called the agreement "the worst deal ever negotiated", raising questions over whether he would rip up the agreement once he took office.
But after he took office, the U.S. president has not yet explicitly said he would pull out from the historic agreement.
The Trump administration has given itself 90 days to complete its review of the deal but will need to make a series of decisions in coming weeks about whether to continue its support of the deal, which also was brokered with Britain, China, France, Germany and Russian Federation.
And, with a funding deadline looming to keep the government running, Trump said it was possible Congress would manage to accomplish it all next week or "shortly thereafter".
"I actually told him, I said, 'You'll make a much better deal on trade if you get rid of this menace or doing something about the menace of North Korea, because that's what it is, it's a menace right now", he said. The agreement allowed rich and poor countries to set their own goals to reduce carbon dioxide and went into effect last November, after the U.S., China and other countries ratified it.