John Kerry actually said...

I also fear a vote of disapproval would weaken the effectiveness and credibility of the United States in the Middle East and around the worl...

The burden should rest on Iran to prove its compliance, not on the U.N. to prove its failure to comply.

Think about that. 'Work with Iran and others in the region to encourage confidence-building measures and regional security.'

I believe that, imperfect as it is, accepting the deal is considerably better for the United States than any of the realistic alternatives.