John Kerry actually said...

"this is not just the United States of America. These are other nuclear powers: France, the United Kingdom, Russia, China."

"We set out to dismantle their ability to be able to build a nuclear weapon, and we have achieved that."

"Now, if the U.S. Congress moves to unilaterally reject what was agreed to in Vienna, the result will be the United States of America walking away from every one of the restrictions that we have achiev..."

"Congress should require the administration to amend and renegotiate parts of this agreement."