We've said to the Iranians all along . . . we still remain open to diplomacy. But it's been very clear that the Iranians don't want to engage with us.

We will harness the sun and the winds and the soil to fuel our cars and run our factories.

We're going to have to come together and take meaningful action to prevent more tragedies like this, regardless of the politics.

Politics in this country [USA] is always tough. It's always contentious, because this is a big country and a diverse country, and people have strong points of view, and we've got a great diversity of interests.

The path towards sustainable energy sources will be long and sometimes difficult. But America cannot resist this transition, we must lead it. We cannot cede to other nations the technology that will power new jobs and new industries, we must claim its promise. That's how we will maintain our economic vitality and our national treasure-our forests and waterways, our crop lands and snow-capped peaks. That is how we will preserve our planet, commanded to our care by God. That's what will lend meaning to the creed our fathers once declared.

If there's one thing I would like to see, it'd be for us to be able to price the cost of carbon emissions.

Globalization combined with technology, combined with social media and constant information, have disrupted people's lives sometimes in very concrete ways; a manufacturing plant closes and suddenly an entire town no longer has what was the primary source of employment.