In a global economy where our economies and supply chains are deeply integrated, it's not even possible.

Nothing will deter us from building the future we want for our children. What greater rejection of those who would tear down our world than marshaling our best efforts to save it.

As a nuclear power - as the only nuclear power to have used a nuclear weapon - the United States has a moral responsibility to act.

The point I was making was not that Grandmother harbors any racial animosity. She doesn't. But she is a typical white person.

To try to blackmail a president into giving them some concessions on issues that have nothing to do with the budget.

I think what is true is that there's been an underlying division in the United States. Some of it has to do with the fact that economic growth and recovery tends to be stronger in the cities and in urban areas. In some rural areas, particularly those that were reliant on manufacturing, there has been weaker growth, stagnation, people feeling as if their children won't do as well as they will.

Chancellor [Angela] Merkel is perhaps the only leader left among our closest allies that was there when I arrived. So in some ways we are now the veterans of many challenges over the last eight years.