Sen. Tim Kaine, D-Va.:

Well, the reason that you do a deal is, if you don't trust somebody, you want to get inspections.

That's what this deal got us that we never had before. And Iran now doesn't have to allow the inspections. That was the core of Secretary Mattis' argument. The deal allowed significant inspections of Iran's nuclear capacity.

Of course, in the past, they were seeking nuclear weapons. That's why we did the deal to begin. We did it to top their nuclear weapons program. And even the Israeli security officials and Mossad intelligence officials, when I would go to the region and meet with them, they say that Iran has been complying with the deal.

We should focus our energy and attention on the things that Iran is doing wrong. We gave the White House sanctions authority nearly a year ago to take stiff action against Iranian violation of missile program rules and violations of human rights provisions. The White House has chosen not to use those sanctions tools.

And instead they're blowing up the one deal that the IAEA, our allies, and our secretary of defense says is actually working.