George Mitchell: “There is no such thing as a conflict that can't be ended.”

I think we do have an obligation to do that because the United States is the indispensable party to any possible resolution on the Israeli-Palestinian conflict.

It is feasible. We tried that. I tried very hard in behalf of President Obama to get the Arab states to take steps in the direction of normalization, based on the Arab peace initiative, proposed initially by King Abdullah of Saudi Arabia.

The Republicans of the Congress specifically, who have made the tax pledge, and the president who is trying to get them to break it.

I think he has a responsibility, not just to the president, obviously he has to the members of his caucus, but everyone has a higher responsibility to the country, to the constitution.