(CNN)April 19, 2017 – Iran is sticking to the terms of its nuclear deal made with the Obama administration, Secretary of State Rex Tillerson has concluded, but he questions whether sanctions should keep being lifted, given Iran’s continued support for terrorism.

The Secretary of State said the Trump administration was reviewing the lifting of sanctions against Iran, arguing that the country remains a sponsor of terrorism. Tillerson came to the conclusion Tuesday during a routine, quarterly report to Congress on Iran’s progress in the nuclear deal.
Reapplying sanctions would violate the terms of the groundbreaking deal signed with Iran by former President Barack Obama, Russia, China and EU partners.

In a statement released by the State Department, Tillerson said Iran is making good on its commitment under the agreement, but added that President Donald Trump has ordered a review of the deal, known as the Joint Comprehensive Plan of Action.
In the letter addressed to Congress, Tillerson asserted that “Iran remains a leading state sponsor of terror through many platforms and methods.”
“President Donald J. Trump has directed a National Security Council-led interagency review of the Joint Comprehensive Plan of Action that will evaluate whether suspension of sanctions related to Iran pursuant to the JCPOA is vital to the national security interests of the United States,” the statement reads.
On Wednesday, Defense Secretary Jame Mattis also highlighted Iran’s in involvement throughout the Middle East.
“Everywhere you look, if there’s trouble in the region, you find Iran,” Mattis told reporters. “Right now, what we’re seeing is the nations in the region and others elsewhere trying to checkmate Iran, and the amount of disruption and the amount of instability they can cause.”
Under the deal, the State Department must notify Congress every 90 days on Iran’s compliance under JCPOA. It is the first such notification under the Trump administration.