Robert Menendez actually said...

new sanctions at this time are unnecessary and, far from enhancing the prospects for negotiations, risk fatally undermining our diplomacy

However, it is not just any agreement. It has to be an agreement that significantly moves Iran in a different direction.

But such a peaceful resolution to Iran's nuclear program will not be possible if we do not allow the negotiations to proceed to conclusion.

I believe the only way Iran will voluntarily stop their march to nuclear weapons is if they know tougher and tougher sanctions will be enact...