John Kerry actually said...

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

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

As President Obama has stated, a bad agreement is worse than no agreement.

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