"Congress has played a critical role throughout this negotiation and in the years leading up to these talks, and there is no doubt that Congress will continue to play a role."
"We will not take a bad deal, precisely because we share your concerns and share your suspicions."
"At the end of the day, we will all have to judge whether what we have achieved in any kind of solution meets our security interests."
"We seek to achieve a long-term comprehensive solution to the Iranian nuclear issue."
"I think sometimes we have a tendency to look at Iran as if it is the one country in the world that does not have politics."
"I commit to you, Mr. Chairman, Ranking Member, Senator Rubio, others, that going forward, we will not only continue that, we will expand that."
"Our best judgment right now is this, and I think, Senator, you pointed to something very important."
"the best way to ensure that Iran complies with its obligations would be to suspend the existing sanctions, not end them."
"Any agreement that we reach... would have to have more stringent requirements still in terms of monitoring, in terms of access, in terms of transparency all along the production line."
"We will be no worse off, and, indeed, we will be infinitely better off, given the knowledge that we will accumulate over time about their program."
"Should Iran refuse a reasonable deal or cheat on its current commitments under the JPOA, the Senate and House could impose additional measures in a matter of hours."