John Kerry actually said...

"I hope members of both parties will work with the administration to strengthen our ability to implement the agreement successfully."

"The United States should reaffirm publicly that we have vital national interests in the Persian Gulf and that we will use military force, if necessary, to defend them."

"this agreement gives us a chance to prevent an Iranian nuclear weapon through diplomacy and negotiations, rather than through war."

"A vote of disapproval in the absence of a credible alternative, would, after 10 years of effort, be self-defeating for our country."