John Kerry: “Under the basing act, the basing agreement, which permits Russians to have their forces in Crimea, they are permitted to…”

Only one group of people, and they are here in Washington, and some of them spread around the country.

Coal is the dirtiest fuel in the world, and emissions that are not captured from coal are the worst cause of the warming of the ocean.

It's a matter of mathematics and physics, not politics, not ideology. It is a response to the science.

We are competing, but everybody has their own approach, which is one of the exciting things here.