If Iran does not take steps in the near future to live up to its obligations, then the United States will not continue to negotiate indefinitely... Our patience is not unlimited.
It is in the interests of all of us - the United States, China and the rest of the world - to make sure that the rules of the road are upheld. These rules and norms are part of the foundation of regional stability, and they have allowed nations across the region, including China, to grow and prosper.
I was able to excite and engage people who previously hadn't been involved in politics, and part of the reason that I was able to be re-elected and stay relatively popular in the United States was because even when the economy was bad or we had problems, people sensed that I listened to them and I was on their side.