Under my plan of a cap-and-trade system, electricity rates would necessarily skyrocket.

Does that mean that all vestiges of past discrimination would be eliminated, that the income gap or the wealth gap or the education gap [between Afro-Americans and white] would be erased in five years or 10 years? Probably not, and so this is obviously a discussion we've had before when you talk about something like reparations.

The things that led me to run for office - trying to figure out how we create an economy where everybody's got a fair shot and if you work hard, you can achieve your dreams.

For we have always understood that when times change, so must we, that fidelity to our founding principles requires new responses to new challenges, that preserving our individual freedoms ultimately requires collective action.

So many of my staff is young enough that they're going to do amazing things. And I'm going to be helping them try to do them.

What is important is that we make sure to work together, that we understand our strength comes from unity and not division.

I want to thank the Greek people publicly for their humanitarian response to the crisis of so many migrants and refugees seeking safety in Europe. Greeks, especially on the islands, have shown extraordinary compassion and they've rightly earned the admiration of the world.