John Kerry: “If the president of Russia chooses yet again to ignore it, that's his choice.”

What we are trying to achieve now is really to establish some stability if we can, in the relationship, without conceding anything.

the U.N. Finance Analysis suggests that it will cost trillions of dollars. Maybe $2.5 to $4.5 trillion a year between now and 2050.

The Administration is determined to try to stabilize what has been, particularly recently, a very unstable situation.

It's very obvious that there are huge threats here.