Where are they now that we, the men whom they sent off to war, have returned? These are commanders who have deserted their troops, and there is no more serious crime in the law of war. The Army says they never leave their wounded. The Marines say they never leave even their dead. These men have left all the casualties and retreated behind a pious shield of public rectitude. They have left the real stuff of their reputation bleaching behind them in the sun in this country.

You might not see climate change as an immediate threat to your job, your community, or your families," Kerry said. "But let me tell you, it is." He continued, "climate change is directly related to the potential of greater conflict and greater instability. I'm telling you that there are people in parts of the world - in Africa today, they fight each other over water. They kill each over it. And if glaciers are melting and there's less water available and more people, that is a challenge we have to face.

You can't have responsibility and you can't have us living up to our ideals unless it's based on a fairly common acceptance of truth, of what is true - what is the truth here?

What Donald Trump is doing is serving the polluters and serving a narrow group of ideological interests. That's not leadership. That's abdication of responsibility, and this step does not make America first. It makes America last.

And if [Vladimir Putin] does fight ISIL alone, how does it work out for Russia to have sided with Assad, sided with Iran, sided with Hizballah, when they're trying to reach out to the rest of the Sunni world in the region? That's not a good equation for Russia.

I think, all in all, the Obama administration and what President Obama has focused on has lived up to our need to protect American interests, to live our values and assert our values, and to stand up for future generations.

You cannot bring peace in Syria as long as [Bashar] Assad is, in fact, there.