Robert Menendez actually said...

I share your concerns that the Iranians are playing for time.

I applaud the administration for undertaking them. I think it is incumbent on us to look for every avenue.

I do not believe that strengthens us. It does not strengthen our position at all, and these negotiations are going on right now.

new sanctions at this time are both unnecessary and, far from enhancing the prospect of negotiations, risk fatally undermining our diplomacy