07/26/2017
https://congress.gov...
"The problem is that the United States cannot unilaterally alter fundamental terms of a deal"
"Unilaterally amending the provisions of that deal... would be considered by all of our allies in Iran violations of the deal"
"One of the most powerful arguments that was made in support of the agreement to prevent Iran from being a nuclear weapon state is that it will strengthen our ability to respond aggressively and effect..."
"We here in this body cannot simply and unilaterally change an internationally-negotiated agreement."