Listening to evangelicals bridges major political fault line.

I want to make sure that we, as a nation, stay unified because that's how we're going to achieve our missions.

While I understand the passions and the anger that arise over the death of Michael Brown, giving into that anger by looting or carrying guns, and even attacking the police only serves to raise tensions and stir chaos.

We've got to make sure that teachers are respected, that they are rewarded, that young people like yourself who have talent and want to work with people, that you're able to support yourself and live out a great life being a teacher.

I do have confidence that we're gonna be able to get it right. But it's not gonna be overnight. And there's no silver bullets to this. The fact of the matter is, is that we are suffering from a massive hangover from a binge of risk taking.

No challenge poses a greater threat to future generations than climate change.

For me, personally, the most difficult moments had to do with not just terrorist attacks, but also shootings.