A relentless focus on the outward markers of success can lead to complacency. It can make you lazy.

My particular worries on any given day - how I'm doing in the polls or what somebody is saying about me... for good or for ill - isn't particularly relevant. What is relevant is: What am I building that lasts?

We do have to balance this issue of privacy and security. Those who pretend that there's no balance that has to be struck and think we can take a 100-percent absolutist approach to protecting privacy don't recognize that governments are going to be under an enormous burden to prevent the kinds of terrorist acts that not only harm individuals, but also can distort our society and our politics in very dangerous ways.

You know, it's fashionable right now for people to be cynical. We go in cycles like this and right now a lot of people are saying, 'Oh, America is doing terribly' and 'What are we going to do?'

My abiding faith in the American people is undiminished. That's still what drives me every single day.

ISIL is a terrorist organization, pure and simple. And it has no vision other than the slaughter of all who stand in its way.

This massacre in Orlando is therefore a further reminder of how easy it is for someone to get their hands on a weapon that lets them shoot people in a school or in a house of worship or a movie theater or in a nightclub. And we have to decide if that's the kind of country we want to be. And to actively do nothing is a decision, as well.