Robert Menendez actually said...

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

The more I hear from the administration and its quotes, the more it sounds like talking points that come straight out of Tehran.